Demands to take revenge for the assassination of Caliph Uthman rose among parts of the population, and a large army of rebels led by Zubayr, Talha and the widow of Muhammad, Aisha, set out to fight the perpetrators. The army reached Basra and captured it, whereupon 4,000 suspected seditionists were put to death. Subsequently, Ali turned towards Basra and the caliph's army met the rebel army. Though neither Ali nor the leaders of the opposing force, Talha and Zubayr, wanted to fight, a battle broke out at night between the two armies. It is said, according to Sunni Muslim traditions, that those who were involved in the assassination of Uthman initiated combat, as they were afraid that negotiations between Ali and the opposing army would result in their capture and execution. The battle thus fought was the first battle between Muslims and is known as the Battle of the Camel. Ali emerged victorious and the dispute was settled. The eminent companions of Muhammad, Talha and Zubayr, were killed in the battle and Ali sent his son Hasan ibn Ali to escort Aisha back to Medina.