Banu Hashim
A "hadith" holding that the caliph must be from Quraysh became almost universally accepted by the Muslims, with the exception of the Kharijites. Indeed, control of the Islamic state essentially devolved into a struggle between various factions of the Quraysh. In the first civil war, these factions included the Banu Umayya represented by Mu'awiya ibn Abi Sufyan, the Banu Hashim represented by Ali, and other Qurayshi leaders such as al-Zubayr ibn al-Awwam of the Banu Asad and Talha ibn Ubayd Allah of the Banu Taym. Later, during the Second Muslim Civil War, these same factions again fought for control of the caliphate, with the Umayyads victorious at the war's conclusion in 692/93. In 750, the issue of which Qurayshi clan would hold the reins of power was again raised but this time, the Abbasids, a branch of the Banu Hashim, were victorious and slew much of the Banu Umayya. Afterward, Islamic leadership was contested between different branches of the Banu Hashim.