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Case file

The Four Books

Wikipedia's first sentence called it “twelver shiʿa term referring to their four best known hadith collections”. Today it says “four canonical hadith collections of twelver shia islam”. "martyr" appeared 1 time in the opening in 2023. Today: absent from the opening.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
We saved snapshots of this article over twenty years; you are reading the 2025 one. Red dashes: removed from Wikipedia since. Pale dots: rewritten; the numbered note shows what it says now. 1 tap a number or a side note to jump between them
The opening as it read in 2025

Four canonical hadith collections of Shia Islam Not to be confused with the Four Books of Chinese Confucianism . The term is used mostly by Twelver Shias . Shi'a Muslims use different books of hadith from those used by Sunni Muslims, who prize the six major hadith collections . In particular, Twelver Shi'a consider many Sunni transmitters of hadith to be unreliable because many of them took the side of Abu Bakr , Umar , Uthman and Ali instead of only Ali (and the rest of Muhammad 's family) and the majority of them were narrated through certain personalities that waged war against Ahlul Bayt or sided with their enemies such as Aisha that fought Ali at Jamal, or Muawiya who did so at Siffin. Hussain (grandson of Muhammad and son of Ali ibn Abi Talib) was martyred at the Battle of Karbala. Shia trust traditions transmitted through the Imams , Muhammad's descendants through Fatima Zahra . The content of most of the Hadiths in “Four Books” is nearly the same as that in “Six Books ”, the Sunni Hadith collections. Only differing in the chain of transmission in many cases. There are <ref group=lower-alpha> tags or templates on this page, but the references will not show without a template or template (see the help page ).

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1287802688.
Today
Wikipedia's first sentence called it “twelver shiʿa term referring to their four best known hadith collections”. Today it says “four canonical hadith collections of twelver shia islam”. "martyr" appeared 1 time in the opening in 2023. Today: absent from the opening. Read the current article and compare.
201020152020Oct '232025
jihad00011
martyr00011
Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.

What Wikipedia says this is

Every article opens by defining its subject. This one was redefined since 2010, and today's defining sentence is their current revision.

Then

twelver shiʿa term referring to their four best known hadith collections

Now

four canonical hadith collections of twelver shia islam

Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

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