Muhammad al-Baqir

Ja'far al-Sadiq (c. 699-765) taught in Medina for some thirty-four years. Descended from Ali and from Abu Bakr, he held to study over revolt, and the Twelver school of law carries his name.

Muhammad ibn Ali (56 or 57–114 AH), called al-Baqir, was a son of Zayn al-Abidin and a grandson of both al-Hasan and al-Husayn. He taught hadith and law in Medina and is the fifth Imam of the Twelver Shi'a.

Ali ibn al-Husayn (c. 658–712), called Zayn al-Abidin, was the only son of al-Husayn to survive Karbala. He lived in Medina as a transmitter of hadith and is remembered for his worship and secret charity.