[1] In the Shia belief, Kitab al-Jafr is a mystical book with esoteric teachings of Muhammad for Ali.
[4] Yet in a hadith by the Sunni traditionist Abu Nu'aym al-Isfahani (d. 1038), Ali denies having received anything from Muhammad except for a folio as tiny as a finger with three short sentences.
The Sunni scholars Abd al-Razzaq al-San'ani (d. 827) and al-Bayhaqi (d. 1066) stripped Ali of this folio and transferred its ownership to the second caliph, Umar (r. 632–634).
[8] Often described in similar terms in Shia sources, all these books are thought to contain esoteric teachings, apocalyptic prophesies,[3][1] and legal injunctions.
[9] In particular, al-Jafr is thought to have addressed all matters of religion, including a detailed penal code that accounted even for bruises.