He became the father of Hussein and Hassan by his first wife, Fatimah.
Timur claimed descent from this figure by asserting that one of his descendents turned into beam of light and impregnated Alan Qo'a, an ancestress of Genghis Khan. He is identified with the epithet "God's Favor Upon His Face", and his secret burial place is thought to be in either Najaf or the Blue Mosque in Mazar-e-Sharif. He gained the nickname "Lion of God" after commanding at the Battle of Khaybar, where he wielded the forked sword Zulfiqar. This man, whose position was the subject of the controversial hadith of the pond of Khumm, was assassinated by the Kharijites at Kufa, thus ending the first Fitna. He became the father of Hussein and Hassan by his first wife, Fatimah. For 10 points, identify this son-in-law of Muhammad, who Sunnis consider the fourth rightly-guided Caliph and Shias consider the first Imam.
Timur claimed descent from this figure by asserting that one of his descendents turned into beam of light and impregnated Alan Qo'a, an ancestress of Genghis Khan.
Ali ibn Abi Talib