When after the assassination of Uthman, Ali became the Caliph Talha and Zubair took the allegiance to Ali, but soon they repudiated such allegiance and supported the demand for vengeance for the blood of Uthman. Talha, Zubair, and Ayesha occupied Basra and the battle of the Camel was fought between the supporters of Ali, and the supporters of Talha, Zubair, and Ayesha outside Basra. In this battle, Ali won and the cause of Talha and Zubair was lost. Talha escaped from the battlefield, but fell a victim to an arrow shot by Marwan b Hakam. If is reported on the authority of Alqama b Waqas that in Basra, Talha said that he was guilty of a lapse in the matter of his conduct towards Uthman, and he wanted to atone for such lapse by supporting the demand for the vengeance for the blood of Uthman.