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{{Documentation subpage}}
{{Documentation subpage}}
{{Redirect|Template:Proveit|the template about the referencing gadget|Template:User ProveIt}}
{{High-risk| 236,000+}}
{{High-use}}
{{Notice|An introductory version of this documentation is provided at [[Wikipedia:Citation needed]].}}
{{Notice|An introductory version of this documentation is provided at [[Wikipedia:Citation needed]].}}
{{Template shortcut|cn|facts|uncited|citeneeded}}
{{Template redirect|citationneeded|reference needed}}
<noinclude>{{pp-semi-indef}}<!--persistent vandalism from anon users--></noinclude>
{{Tl|Citation needed}} is a [[Wikipedia:Template messages|template]] used to identify claims in articles, particularly if questionable, that need a [[Wikipedia:Citing sources|citation]] to a [[WP:Reliable sources|reliable source]]. This template produces the superscripted message&nbsp;{{citation needed|date=May 2013|reason=example}} and is installed with no spaces directly after punctuation.


== Use ==
{{Tl|Citation needed}} (also known by the redirects {{Tl|Cn}} and {{Tl|Fact}}) is a [[Wikipedia:Template messages|template]] used to identify questionable claims that lack a [[Wikipedia:Citing sources|citation]] to a [[WP:Reliable sources|reliable source]]. The template produces a superscripted notation like the following:
:{{tnull|Citation needed|date{{=}}{{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}
:{{tnull|Citation needed|date{{=}}{{CURRENTMONTHNAME}} {{CURRENTYEAR}}|reason{{=}}''Your explanation here''}}


=== Notes ===
:[[Humphrey Bogart]] has won several [[snooker]] world championships.{{Citation needed|date={{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}
* The {{para|date}} parameter consists of the full English name of the current month (with initial capital and rest lowercase), a space, and the year. For example, "{{xt|January 2013}}" but not "{{!xt|jan13}}" or "{{!xt|January 23, 2013}}". Deviation from this rule will place the article in [[:Category:Articles with invalid date parameter in template]].
** To automatically add the current date, you can use [[Help:Substitution|substitution]] like this: <code><nowiki>{{subst:Citation needed}}</nowiki></code>.
** If the {{para|date}} parameter is not given, a [[Wikipedia:Bots|bot]] will soon add it ([[User:AnomieBOT|AnomieBOT]]'s TagDater task) but it's better if you add it yourself to avoid an extra edit to the article's history.
* The {{para|reason}} parameter is for an explanation why you think the material needs a source. It is optional but very helpful. It is displayed as a [[tooltip]] in some browsers (hover the mouse here {{Citation needed|reason=If and only if this text is displayed, the reason parameter is working in your browser|date={{currentmonth}} {{currentyear}}}} to check behaviour of your browser). For example, the following usage might be appropriate to the claim that "Humphrey Bogart was an avid snooker player": <br> {{tnull|Citation needed|reason{{=}}This claim needs a reliable source; Bogart was a famous actor but his major biographies don't mention snooker.|date{{=}}{{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}
** Use only [[plain text]] for the {{para|reason}} parameter. It does not support [[Help:Wiki markup|wiki markup]] like wikilinks, which can mess up the tooltip.
** Double quotation marks used within the {{para|reason}} parameter will likewise mess up the tooltip; use single quotes or the HTML code <code>&amp;quot;</code> instead.
** If omitted, the tooltip "This claim needs references to reliable sources." is used by default.
* This template should usually be installed directly ''after'' punctuation, such as a full stop (period) or a comma.
* Use of this template places the article into [[:Category:All articles with unsourced statements]] and [[:Category:Articles with unsourced statements from {{CURRENTMONTHNAME}} {{CURRENTYEAR}}]] (example; past months are listed in [[:Category:Articles with unsourced statements]]).
* Remove the template when you add a citation for a statement.


===Usage===
== Examples ==
=== Example 1 ===
You may append a date to the template in the following format:
:<code>{{Tlx|Citation needed|date{{=}}{{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}</code>
:<code><nowiki>This sentence shows the template used at the end.{{Citation needed|reason=Reliable source needed for the whole sentence|date=</nowiki>{{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}</code>


This wikitext will be rendered as follows:
'''Notes''':
* [[Help:Substitution|Substitution]] of this template will automatically fill the date parameter.
* If you don't add a date parameter, a [[Wikipedia:Bots|bot]] will date your entry with the month and year at a later time.
* The date parameter consists of the name of the current month and the year only, not full dates. The names of the months are capitalised in English. ''Any deviation from these two rules will result in an "invalid date parameter" error.''


:This sentence shows the template used at the end.{{Citation needed|reason=Reliable source needed for the whole sentence|date={{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}
It is also recommended to add the (non-displayed) {{para|reason}} parameter to leave a better record for future editors. For example, the following usage might be appropriate to the claim that "Humphrey Bogart has won several snooker world championships.":
:<code>{{Tlx|Citation needed|reason{{=}}This claim needs a reliable source; Bogart was a famous actor, and his major biographies don't mention snooker.}}</code>


=== Example 2 ===
Adding this template to an article places the article into [[:Category:Articles with unsourced statements]] or a dated subcategory thereof.


:<code><nowiki>[[Humphrey Bogart]] was an avid snooker player.{{Citation needed|date=</nowiki>{{currentmonth}} {{currentyear}}}}</code>
Please remove the template when you add a citation for a statement.


The template indicates that it may be that Humphrey Bogart played snooker at some point and it may be that he was enthusiastic about the game but no ''reliable'', ''published'' sources were given to verify it and the information is not considered [[common knowledge]].
===Examples===
:<code>This sentence shows the template used at the end.{{Tlx|Citation needed|reason{{=}}reliable source needed for the whole sentence}}</code>


:[[Humphrey Bogart]] was an avid snooker player.{{Citation needed|date={{currentmonth}} {{currentyear}}}}
''The above wikitext will render as follows:''


=== Example 3 ===
:This sentence shows the template used at the end.{{Citation needed|reason=reliable source needed for the whole sentence|date={{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}


If it is considered that he might have played snooker but was not an avid player, a reason for the need of a citation may be given, displayed as a tooltip when the mouse hovers on "citation needed":
The template should be inserted ''after'' punctuation, such as a period or comma.
<!--
:<code>While this example{{Tlx|Citation needed|2=1=shows the template}} used to request a citation for a specific part of a sentence.</code>


:<code><nowiki>[[Humphrey Bogart]] was an avid snooker player.{{Citation needed|date=</nowiki>{{CURRENTMONTHNAME}} {{CURRENTYEAR}}|reason=Only aware he was photographed playing once. Not aware of any source that claims he played a lot.}}</code>
''The above wikitext will render as follows:''


:[[Humphrey Bogart]] was an avid snooker player.{{Citation needed|date={{CURRENTMONTHNAME}} {{CURRENTYEAR}}|reason=Only aware he was photographed playing once. Not aware of any source that claims he played a lot.}}
While this example {{Citation needed|1=shows the template}} used to request a citation for a specific part of a sentence.
-->


In this example, it may be better to use the {{tl|Citation needed span}}, which has slightly different syntax, template to highlight the word "avid".
===When not to use this template===
Unsourced or poorly sourced contentious material about [[Wikipedia:Biographies of living persons|living persons]] should be '''removed immediately'''. Do not tag it: immediately remove it. For more information, see the section on [[Wikipedia:Biographies of living persons#Remove unsourced or poorly sourced contentious material|poorly sourced contentious material]] in the policy page ''Biographies of living persons''.


== When not to use this template ==
Material that is doubtful and harmful may be removed immediately, rather than tagged. See [[Wikipedia:Verifiability#Burden of evidence|Burden of evidence]].


Contentious material about [[Wikipedia:Biographies of living persons|living persons]] that is unsourced or poorly sourced should be '''removed immediately'''. Do not tag it; immediately remove it. This includes material that is disparaging, misrepresentative, insulting, harmful, or possibly [[libelous]]. For some policy about this, see the sections [[Wikipedia:Biographies of living persons#Remove contentious material that is unsourced or poorly sourced|"Remove contentious material that is unsourced or poorly sourced"]] at [[Wikipedia:Biographies of living persons]] and [[Wikipedia:Verifiability#Burden of evidence|"Burden of evidence"]] at [[Wikipedia:Verifiability]].
The <nowiki>{{Citation needed}}</nowiki> template is intended for use when there is a general question of the verifiability of a statement, or when an editor believes that a reference verifying the statement should be provided. Other templates are available for other or more specific issues, see the [[Template:Cn#Inline_templates|list of inline templates]]. For example, claims that you think are incorrect should be tagged with {{Tl|Dubious}}, and those which represent a non-neutral view should be tagged with {{Tl|POV-statement}}. Being specific about the nature of the problem will help other editors correct it.


The <nowiki>{{Citation needed}}</nowiki> template is intended for use when there is a general question of the verifiability of a statement, or when an editor believes that a reference verifying the statement should be provided. Other templates are available for other or more specific issues; see the [[#Inline templates|list of inline templates]]. For example, claims that you think are incorrect should be tagged with {{Tl|Dubious}}, and those which represent a non-neutral view should be tagged with {{Tl|POV statement}}. Being specific about the nature of the problem will help other editors correct it.
If you have the time and ability to find an authoritative reference, please do so. Then add the citation yourself, or correct the article text. After all, the ultimate goal is not to merely identify problems, but to fix them.


Within a [[Wikipedia:lead section|lead section]] that is clearly written as a summary of a substantially sourced article,
While an editor may add this template to any uncited passage for any reason, many editors object to what they perceive as overuse of this tag, particularly in what is known as "drive-by" tagging, which is applying the tag without attempting to address the issues at all. Consider whether adding this tag in an article is the best approach before using it, and use it judiciously. Wikipedia's [[WP:V|verifiability policy]] does '''not require''' reliable sources for common well-known facts (e.g., "The Moon orbits the Earth"), or that citations be repeated through every sentence in a paragraph. All direct quotations and facts whose accuracy might be challenged (e.g., statistics) require citations. See [[WP:MINREF]] for the list of material that is absolutely required to be followed by an [[Wikipedia:Inline citation|inline citation]], rather than a [[Wikipedia:General references|general reference]] or no citation at all.
* statements that are supported with citations within the body of the article should not be tagged,
* statements that are not supported in the article body should be tagged with {{tl|Not verified in body}}.


If you have the time and ability to find an authoritative reference, please do so. Then add the citation yourself, or correct the article text. After all, the ultimate goal is not to merely identify problems, but to fix them.
This template is intended for specific passages that need citation. For entire articles or sections that contain significant material lacking sources (rather than just specific short passages), there are other, more appropriate templates, such as {{Tl|Unreferenced}} or {{Tl|Refimprove}}.


While an editor may add this template to any uncited passage for any reason, many editors object to what they perceive as overuse of this tag, particularly in what is known as "[[drive-by]]" tagging, which is applying the tag without attempting to address the issues at all. Consider whether adding this tag in an article is the best approach before using it, and use it judiciously. Wikipedia's [[WP:Verifiability|verifiability policy]] requires neither reliable sources for [[Common knowledge|common well-known facts]] (e.g., "the Moon orbits the Earth"), nor that citations be repeated through every sentence in a paragraph. All direct quotations and facts whose accuracy might be challenged (e.g., statistics) require citations. See [[WP:MINREF]] for the list of material that is absolutely required to be followed by an [[Wikipedia:Inline citation|inline citation]], rather than a [[Wikipedia:General references|general reference]] or no citation at all. Also note that the [[WP:BURDEN|burden of evidence]] lies with the editor who adds or restores material.
=== How to respond to this tag ===
The addition of this tag is a request for an inline citation to support the tagged statement. If you are able to provide a citation to support the claim, then please do so.


This template is intended for specific passages that need citation. For entire articles or sections that contain significant material lacking citations (rather than just specific short passages), there are other, more appropriate templates, such as {{Tl|Unreferenced}} and {{Tl|More citations needed}} (for whole articles) as well as {{Tl|Unreferenced section}} and {{Tl|More citations needed section}} (for sections of articles).
Except for [[WP:BLP|certain kinds of claims about living people]], which require immediate production of inline citations, there is no specific deadline for providing citations. Please do not delete information that you believe is correct simply because no-one has provided a citation within an arbitrary time limit. Where there is some uncertainty about its accuracy, most editors are willing to wait about a month to see whether a citation can be provided.


Do not use this template to tag policies or guidelines.
=== See also ===
* [[Wikipedia:Citing sources]]
** Especially: [[Wikipedia:Citing sources#Dealing with unsourced material|Unsourced material]]
* [[Wikipedia:Verifiability]]
* [[Wikipedia:Reliable sources]]
* [[Wikipedia:WikiProject Fact and Reference Check]]


== How to respond to this tag ==
==== Inline templates ====
*{{Tl|Cite quote}}{{Cite quote}}: for "actual quotations" which need citations to make them proper
*{{Tl|Clarify}}{{Clarify}}: request clarification of wording or interpretation
*{{Tl|Examples}}{{Examples}}: request examples for clarification
*{{Tl|List fact}}{{List fact}}: request a citation of a source which justifies inclusion of a given entry in a [[Wikipedia:List guideline|list]]
*{{Tl|Nonspecific}}{{Nonspecific}}: flag a general, yet factual statement as needing to be made more specific before it can be verified
*{{Tl|Page needed}}{{Page number}}: request a page number for an existing citation


The addition of this tag is a request for an inline citation to support the tagged statement. If you are able to provide a citation to support the claim, then please do so.
===== Highlighting some text that needs a citation =====
*{{Tl|Citation needed span}}({{Tl|Cn-span}}/({{Tl|Fact span}}: {{Citation needed span|Example text|date={{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}: similar, except that it outlines the text that needs a citation with a box
*{{Tl|Reference necessary}}: {{Reference necessary|Example text|date={{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}: lightly underlines the text that needs a reference


Except for [[WP:Biographies of living persons|contentious claims about living people]], which should be immediately removed if not cited, there is no specific deadline for providing citations. Please do not delete information that you believe is correct solely because no one has provided a citation within an arbitrary time limit. If there is some uncertainty about its accuracy, most editors are willing to wait at least a month to see whether a citation can be provided.
===== Incomplete citations =====
*{{Tl|Full}}{{Full}}: in-line request for full citation, for example when only (Author, YEAR) is given.
*{{Tl|Page needed}}{{Page needed}}: in-line request for the page number or page numbers in a work such as journal for an existing citation.
*{{Tl|Season needed}}{{Season needed}}, similar to {{Tl|page needed}}: for missing TV season & episode number
*{{Tl|Volume needed}}{{Volume needed}}, similar to {{Tl|page needed}}: for missing journal, newspaper, comic, etc., volume and issue numbers)


===== Verification =====
== Template data ==
*{{Tl|Better source}}<!--{{Better source}}-->: flags a statement as requiring a better source
*{{Tl|Dead link}}{{Dead link}}: request a fix for a [[Wikipedia:Dead external links|dead external link]] within a paragraph or a reference citation.
*{{Tl|Failed verification}}{{Failed verification}}: source was checked, and did not contain the cited material
*{{Tl|Request quotation}}{{Request quotation}}: request a direct quote from an inaccessible source, for verification purposes
*{{Tl|Self-published inline}}{{Self-published inline}}: flag a source that cites the author
*{{Tl|Source need translation}}{{Source need translation}}: Self explanatory. See [[WP:NONENG]] for policy requirements
*{{Tl|Verify credibility}}{{Verify credibility|name=Citation needed}}: flag a source as possibly being [[WP:RS|unreliable]] and/or [[WP:V|unverifiable]]
*{{Tl|Verify source}}{{Verify source}}: request that someone verify the cited source backs up the material in the passage


{{TemplateData header}}
===== Content =====
<templatedata>
*{{Tl|Definition}}{{Definition}}: flag a definition as being ambiguous/confusing
{
*{{Tl|Dubious}}{{Dubious}}: flag something as suspected of being incorrect
"description": "The template is used to identify claims in articles, particularly if questionable, that lack a citation to a reliable source.",
*{{Tl|Technical-statement}}{{Technical-statement}}: ...flag a word or phrase [[Wikipedia:Make technical articles understandable]]
"params": {
*{{Tl|Or}}{{or}}: flag something as possibly containing [[Wikipedia:No original research|original research]]
"date": {
*{{Tl|Peacock term}}{{Peacock term}}: [[Wikipedia:Avoid peacock terms|Avoid peacock terms]] too
"label": "Month and year",
*{{Tl|POV-statement}}{{POV-statement}}: dispute the [[Wikipedia:Neutral point of view|neutrality]] of a passage
"description": "Provides the month and year of the citation request; e.g., 'January 2013', but not 'jan13'",
*{{Tl|Quantify}}{{Quantify}}: flag a statement as being vague regarding the amount of something
"type": "string",
*{{Tl|Time fact}}/{{Tl|Chronology citation needed}}{{Time fact}}: request a source confirming or providing the chronology or timeline of a statement
"autovalue": "{{subst:CURRENTMONTHNAME}} {{subst:CURRENTYEAR}}",
*{{Tl|Undue-inline}}{{Undue-inline}}: show that a statement does not ascribe appropriate weight to its sources, according to their prominence; use in preference to...
"suggested": true
*{{TL|Vague}}{{Vague}}: flag a statement that is too vague to be unambiguously verifiable.
},
*{{Tl|Weasel-inline}}{{Weasel-inline}}: flag for [[Wikipedia:Avoid weasel words|weasel word]] cleanup
"reason": {
*{{Tl|When}}{{When}}: flags a particular time period as being vague or ambiguous
"label": "Reason for citation",
*{{Tl|Who}}{{who}}: for placement after descriptions of a group of persons
"description": "A reason as to why, or for what content, the citation is needed; use single quotes, if any",
*{{Tl|Whom}}/{{Tl|By whom}}{{whom}}: placement after mention of a vague third party claim that is not sourced
"type": "string"
*{{Tl|Whom?}}{{Whom?}}
}
}
}
</templatedata>


== Tracking categories ==
=====Timeliness=====
* {{clc|Pages containing citation needed template with unsupported parameters}} – a hidden maintenance/tracking category which is added to pages using this template with unsupported parameters
*{{Tl|Update after}}{{Update after}}: a template that only shows itself after a specified time, indicating an exceptional statement that will [[Wikipedia:Avoid statements that will date quickly|date quickly]]
* {{clc|All articles with unsourced statements}}


== See also ==
====Article message box templates====
* [[Citation needed]], Wikipedia's mainspace article about this template
*{{Tl|Cite check}}, article/section may have inappropriate or misinterpreted citations
* [[Template:Not verified in body]], a similar template specifically for the lead of articles
*{{Tl|Refimprove}}, article/section has weak or incomplete sources/references/citations
* [[Template:Medical citation needed]]
*{{Tl|Unreferenced}}, article/section has no sources/references/citations given at all
* [[Template:More citations needed]]
* [[Wikipedia:Citing sources]], especially [[Wikipedia:Citing sources#Unsourced material|Unsourced material]]
* [[Wikipedia:Reliable sources]]
* [[Wikipedia:Template index/Cleanup#Verifiability and sources]]
* [[Wikipedia:Template index/Sources of articles]]
* [[Wikipedia:Verifiability]]

=== Article message box templates ===
* {{Tl|Cite check}}: article or section may have inappropriate or misinterpreted citations.
* {{Tl|More citations needed}}: article or section has weak or incomplete sources, references, or citations.
* {{Tl|Unreferenced}} and {{Tl|Unreferenced section}}: article or section has no sources, references, or citations given at all.
* Citation method and style
* Citation method and style
** {{Tl|Citation style}}
** {{Tl|Citation style}}
** {{Tl|No footnotes}}
** {{Tl|No footnotes}}


{{Inline tags}}
{{Inline cleanup tags}}

<includeonly>
<includeonly>{{Sandbox other||
<!-- template categories and interwiki links -->
<!-- Template categories -->
[[Category:Inline citation and verifiability dispute templates|Citation Needed]]
[[Category:Inline citation and verifiability dispute templates]]
[[Category:Templates that add a tracking category]]


}}</includeonly>
[[af:Sjabloon:Feit]]
[[als:Vorlage:Beleg]]
[[ar:قالب:حقيقة]]
[[az:Şablon:Fact]]
[[be:Шаблон:Крыніца?]]
[[be-x-old:Шаблён:Няма крыніцы інфармацыі]]
[[bg:Шаблон:Посочи източник]]
[[ca:Plantilla:Citació necessària]]
[[cs:Šablona:Doplňte zdroj]]
[[cy:Nodyn:Angen ffynhonnell]]
[[da:Skabelon:Kilde mangler]]
[[dsb:Pśedłoga:Fakt]]
[[eo:Ŝablono:Citon]]
[[el:Πρότυπο:Εκκρεμεί παραπομπή]]
[[es:Plantilla:Cita requerida]]
[[et:Mall:Lisa viide]]
[[fa:الگو:مدرک]]
[[fi:Malline:Lähde]]
[[fr:Modèle:Citation nécessaire]]
[[ko:틀:출처]]
[[he:תבנית:מקור]]
[[hr:Predložak:Nedostaje izvor]]
[[hsb:Předłoha:Fakt]]
[[hu:Sablon:Forr]]
[[id:Templat:Fact]]
[[is:Snið:Heimild vantar]]
[[it:Template:Citazione necessaria]]
[[ja:Template:要出典]]
[[ka:თარგი:ფაქტი]]
[[lv:Template:Nepieciešama atsauce]]
[[lt:Šablonas:Faktas]]
[[ml:ഫലകം:തെളിവ്]]
[[nl:Sjabloon:Bron?]]
[[no:Mal:Trenger referanse]]
[[nn:mal:kjelde manglar]]
[[pl:Szablon:Fakt]]
[[pt:Predefinição:Carece de fontes]]
[[ro:Format:Necesită citare]]
[[ru:Шаблон:Нет источника]]
[[sc:Template:Esigit tzitassione]]
[[simple:Template:Fact]]
[[sk:Šablóna:Bez citácie]]
[[sl:Predloga:Navedi vir]]
[[sq:Stampa:Citim i duhur]]
[[sr:Шаблон:Чињеница]]
[[sv:Mall:Källa behövs]]
[[te:Template:మూలాలు అవసరం]]
[[th:แม่แบบ:ต้องการอ้างอิงเฉพาะส่วน]]
[[tl:Template:Fact]]
[[vi:Tiêu bản:Cần chú thích]]
[[uk:Шаблон:Fact]]
[[zh:Template:Fact]]
<!-- Keep Interwiki's above this line please --->
</includeonly>

Latest revision as of 18:01, August 8, 2023

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{{Citation needed}} is a template used to identify claims in articles, particularly if questionable, that need a citation to a reliable source. This template produces the superscripted message [citation needed] and is installed with no spaces directly after punctuation.

Use

{{Citation needed|date=July 2024}}
{{Citation needed|date=July 2024|reason=Your explanation here}}

Notes

  • The |date= parameter consists of the full English name of the current month (with initial capital and rest lowercase), a space, and the year. For example, "January 2013" but not "jan13" or "January 23, 2013". Deviation from this rule will place the article in Category:Articles with invalid date parameter in template.
    • To automatically add the current date, you can use substitution like this: {{subst:Citation needed}}.
    • If the |date= parameter is not given, a bot will soon add it (AnomieBOT's TagDater task) but it's better if you add it yourself to avoid an extra edit to the article's history.
  • The |reason= parameter is for an explanation why you think the material needs a source. It is optional but very helpful. It is displayed as a tooltip in some browsers (hover the mouse here[citation needed] to check behaviour of your browser). For example, the following usage might be appropriate to the claim that "Humphrey Bogart was an avid snooker player":
    {{Citation needed|reason=This claim needs a reliable source; Bogart was a famous actor but his major biographies don't mention snooker.|date=July 2024}}
    • Use only plain text for the |reason= parameter. It does not support wiki markup like wikilinks, which can mess up the tooltip.
    • Double quotation marks used within the |reason= parameter will likewise mess up the tooltip; use single quotes or the HTML code &quot; instead.
    • If omitted, the tooltip "This claim needs references to reliable sources." is used by default.
  • This template should usually be installed directly after punctuation, such as a full stop (period) or a comma.
  • Use of this template places the article into Category:All articles with unsourced statements and Category:Articles with unsourced statements from July 2024 (example; past months are listed in Category:Articles with unsourced statements).
  • Remove the template when you add a citation for a statement.

Examples

Example 1

This sentence shows the template used at the end.{{Citation needed|reason=Reliable source needed for the whole sentence|date=July 2024}}

This wikitext will be rendered as follows:

This sentence shows the template used at the end.[citation needed]

Example 2

[[Humphrey Bogart]] was an avid snooker player.{{Citation needed|date=Template:Currentmonth Template:Currentyear}}

The template indicates that it may be that Humphrey Bogart played snooker at some point and it may be that he was enthusiastic about the game but no reliable, published sources were given to verify it and the information is not considered common knowledge.

Humphrey Bogart was an avid snooker player.[citation needed]

Example 3

If it is considered that he might have played snooker but was not an avid player, a reason for the need of a citation may be given, displayed as a tooltip when the mouse hovers on "citation needed":

[[Humphrey Bogart]] was an avid snooker player.{{Citation needed|date=July 2024|reason=Only aware he was photographed playing once. Not aware of any source that claims he played a lot.}}
Humphrey Bogart was an avid snooker player.[citation needed]

In this example, it may be better to use the {{Citation needed span}}, which has slightly different syntax, template to highlight the word "avid".

When not to use this template

Contentious material about living persons that is unsourced or poorly sourced should be removed immediately. Do not tag it; immediately remove it. This includes material that is disparaging, misrepresentative, insulting, harmful, or possibly libelous. For some policy about this, see the sections "Remove contentious material that is unsourced or poorly sourced" at Wikipedia:Biographies of living persons and "Burden of evidence" at Wikipedia:Verifiability.

The {{Citation needed}} template is intended for use when there is a general question of the verifiability of a statement, or when an editor believes that a reference verifying the statement should be provided. Other templates are available for other or more specific issues; see the list of inline templates. For example, claims that you think are incorrect should be tagged with {{Dubious}}, and those which represent a non-neutral view should be tagged with {{POV statement}}. Being specific about the nature of the problem will help other editors correct it.

Within a lead section that is clearly written as a summary of a substantially sourced article,

  • statements that are supported with citations within the body of the article should not be tagged,
  • statements that are not supported in the article body should be tagged with {{Not verified in body}}.

If you have the time and ability to find an authoritative reference, please do so. Then add the citation yourself, or correct the article text. After all, the ultimate goal is not to merely identify problems, but to fix them.

While an editor may add this template to any uncited passage for any reason, many editors object to what they perceive as overuse of this tag, particularly in what is known as "drive-by" tagging, which is applying the tag without attempting to address the issues at all. Consider whether adding this tag in an article is the best approach before using it, and use it judiciously. Wikipedia's verifiability policy requires neither reliable sources for common well-known facts (e.g., "the Moon orbits the Earth"), nor that citations be repeated through every sentence in a paragraph. All direct quotations and facts whose accuracy might be challenged (e.g., statistics) require citations. See WP:MINREF for the list of material that is absolutely required to be followed by an inline citation, rather than a general reference or no citation at all. Also note that the burden of evidence lies with the editor who adds or restores material.

This template is intended for specific passages that need citation. For entire articles or sections that contain significant material lacking citations (rather than just specific short passages), there are other, more appropriate templates, such as {{Unreferenced}} and {{More citations needed}} (for whole articles) as well as {{Unreferenced section}} and {{More citations needed section}} (for sections of articles).

Do not use this template to tag policies or guidelines.

How to respond to this tag

The addition of this tag is a request for an inline citation to support the tagged statement. If you are able to provide a citation to support the claim, then please do so.

Except for contentious claims about living people, which should be immediately removed if not cited, there is no specific deadline for providing citations. Please do not delete information that you believe is correct solely because no one has provided a citation within an arbitrary time limit. If there is some uncertainty about its accuracy, most editors are willing to wait at least a month to see whether a citation can be provided.

Template data

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. Click here to see a monthly parameter usage report for this template based on this TemplateData.

TemplateData for Citation needed

The template is used to identify claims in articles, particularly if questionable, that lack a citation to a reliable source.

Template parameters

ParameterDescriptionTypeStatus
Month and yeardate

Provides the month and year of the citation request; e.g., 'January 2013', but not 'jan13'

Auto value
{{subst:CURRENTMONTHNAME}} {{subst:CURRENTYEAR}}
Stringsuggested
Reason for citationreason

A reason as to why, or for what content, the citation is needed; use single quotes, if any

Stringoptional

Tracking categories

See also

Article message box templates