About
Abd Allah ibn Abi Quhafa (c. 573 – 23 August 634), commonly known by the kunya Abu Bakr, was the first caliph, ruling from 632 until his death in 634. A close companion and father-in-law of Muhammad, Abu Bakr is referred to with the honorific title al-Ṣiddīq (lit. the Veracious) by Sunni Muslims.