 He refrained from further major campaigns in the province for the next five years, during which Mus'ab defeated and killed al-Mukhtar and his supporters and became Iraq's sole ruler.Abd al-Malik shifted his focus to consolidating control of Syria.His efforts in Iraq had been undermined by the Qaysi–Yamani schism when a Qaysi general in Ibn Ziyad's army, Umayr ibn al-Hubab al-Sulami, defected with his men mid-battle to join Zufar's rebellion.