al-Ashtar...
al-Ashtar, one of the mediators, informed 'Ubayd Allah, and he promptly fled to Mu'awiya.[^4] He tried to induce him to accuse and denigrate 'Ali in public, but 'Ubayd Allah would not do so.[^5] He, however, participated as one of the leaders of Mu'awiya's army in the battle of Siffin. A client warned him that Mu'awiya was intentionally exposing him to mortal danger. If he were to win, Mu'awiya would get the rule, and if were killed, he would get rid of him.
His wife, Bahriyya, also told him that he would certainly be killed and this is what Mu'awiya wanted. 'Ubayd Allah insisted on obeying his emir; and he was killed.[^6] The Kufans were less united in their support of war. When 'Ali appealed to them, “March against the enemies of God, march against the remnants of the confederates ( Ahzab ), the murderers of Immigrants and the Helpers, Arbad b.
Rabi'a stood up and shouted, “Do you want to make us march against our Syrian brothers and kill them for you? By God, we shall not do that.”[^7] 'Adi b. Hatim al-Ta'i advised 'Ali to give another chance to letters and messengers before marching.[^8] Others were urging 'Ali to speed up his campaign before the enemy was fully prepared. 'Abd Allah b. Budayl b.
Warqa' representing the Prophet's , turning to people, asked, “How could Mu'awiya pledge allegiance to 'Ali when 'Ali has killed Mu'awiya's brother, Hanzala , his maternal uncle, al-Walid and his grandfather, 'Utba in a single stand?”[^9] In Syria, the preparations for war also went ahead.
Abu Muslim al-Khawalani took the bloody shirt of 'Uthman which Umm Habiba, Mu'awiya's sister had sent from Medina and toured the garrison towns in Syria with it, inciting the people to revenge.[^10] 'Ali set out from Nukhayla probably early in Dhu al-Hijja 36/657. When his army put up their camp, they found the watering place at the Euphrates occupied by Abu al-A'war and the Syrians, who prevented them from reaching the water. They looked for another watering place nearby but could not find one.
As they complained to 'Ali, he sent Sa'sa'a b. Suhan to tell Mu'awiya that he had come not wishing to fight him before proper warning, summons and argument; Mu'awiya's cavalry and foot soldiers had, however, started to fight them and now they were preventing his men from obtaining water. He asked Mu'awiya to order his companions to give them access to the water until they had fully considered their conflict.