Answer
Al-Hajjaj used reinforcements from Syria to crush the rebellion in 701. These reinforcements were sent by the Umayyad caliph, al-Walid I, who was determined to put down the rebellion and restore order to the region. The reinforcements were led by the Umayyad general, Qutayba ibn Muslim, who was a skilled and experienced commander. Qutayba and his men were able to defeat the rebels and restore Umayyad control over the region.