Jaʿfar ibn Muḥammad (Arabic: جعفر بن محمد الصادق‎‎; 700 or 702–765 C.E.), commonly known as Jafar al-Sadiq or simply as-Sadiq (The Truthful), was the sixth Shī'ah Imam, and a major figure in the Hanafi and Maliki schools of Sunni jurisprudence. He was a descendant of Ali on the side of his father, Muhammad al-Baqir, and of Muhammad ibn Abu Bakr on the maternal side of his family, Umm Farwah bint al-Qasim. Muhammad ibn Abu Bakr was raised by Ali, but was not his son.