, Jabir ibn Hayyan (Geber), and of Abu Hanifa , founder of a Sunni Madh'hab . Birth and family life Ja'far al-Sadiq was born in Medina to Umm Farwah bint Qasim ibn Muhammad ibn Abi Bakr on 20 April 702 AD (17 Rabi' al-Awwal, 83 AH ). He has the same