Abd al-Rahman ibn Muhammad ibn al-Ash‘ath, commonly…
January 701 CE
Abd al-Rahman ibn Muhammad ibn al-Ash‘ath, commonly simply Ibn al-Ash‘ath, the scion of a distinguished family of the Kindaite tribal nobility, had played a minor role in the Second Islamic Civil War (680–692) and subsequently served as governor of Rayy.
After the appointment of al-Hajjaj as governor of Iraq and the entire eastern Caliphate in 694, relations between the haughty and overbearing al-Hajjaj and the Iraqi nobility had quickly become strained.
Nevertheless, in 699 or 700, al-Hajjaj had appointed Ibn al-Ash'ath as commander of a huge Iraqi army, the so-called "Peacock Army", to subdue the troublesome principality of Zabulistan, whose ruler, the Zunbil, has vigorously resisted Arab expansion.
After suppressing the Afghans, Ibn al-Ash‘ath receives orders from al-Hajjaj to stay in the area indefinitely.
Defying the order, as well as al-Hajjaj’s insistence on individual tribal homage, al-Ash'ath marches back to Mesopotamia, collecting supporters of his rebellion as he travels.
His army engages troops of al-Hajjaj at Tustar in January 701, defeats them, and moves southward.