المختار الثقفي
The Battle of Ayn al-Warda () was fought in early January 685 between the Umayyad army and the Penitents ("Tawwabin"). The Penitents were a group of pro-Alid Kufans led by Sulayman ibn Surad, a companion of Muhammad, who wished to atone for their failure to assist Husayn ibn Ali in his abortive uprising against the Umayyads in 680. Pro-Alid Kufans had urged Husayn to revolt against the Umayyad caliph Yazid but then failed to assist him when he was killed in the Battle of Karbala in 680. Initially a small underground movement, the Penitents received widespread support in Iraq after the death of Yazid in 683. They were deserted by most of their supporters shortly before the departure to northern Syria where a large Umayyad army under the command of Ubayd Allah ibn Ziyad was preparing to launch an assault on Iraq. In the three-day long battle that ensued at Ras al-Ayn, the small Penitent army was annihilated and its senior leaders, including Ibn Surad, were killed. Nevertheless, this battle proved to be a forerunner and source of motivation for the later more successful movement of Mukhtar al-Thaqafi.