When these people reached Kufah they began to spread the...

When these people reached Kufah they began to spread the news that Amir al-mu'minin had broken the agreement of Arbitration and that he is again ready to fight against the Syrians. When Amir al-mu'minin learned this he contradicted it whereupon these people stood up in rebellion and encamped twelve miles from Baghdad in the low area of the canal called Nahrawan.

On the other side, after hearing the verdict of Arbitration Amir al-mu'minin rose for fighting the army of Syria and wrote to the Kharijites that the verdict passed by the two arbitrators in pursuance of their heart's wishes instead of the Qur'an and sunnah was not acceptable to him, that he had therefore decided to fight with them and they should support him for crushing the enemy. But the Kharijites gave him this reply, "When you had agreed to Arbitration in our view you had turned heretic.

Now if you admit your heresy and offer repentance we will think over this matter and decide what we should do." Amir al-mu'minin understood from their reply that their disobedience and misguidance had become very serious. To entertain any kind of hope from them now was futile. Consequently, ignoring them he encamped in the valley of an-Nukhaylah with a view to marching towards Syria.

When the army had been arrayed he came to know that the men desired to deal with the people of Nahrawan first, and to move towards Syria afterwards. Amir al-mu'minin, however, said that they should be left as they were, that they themselves should first move towards Syria while the people of Nahrawan could be dealt with afterwards. People said that they were prepared to obey every order of his with all their might whether he moved this way or that way.

The army had not moved when news about the rebellion of Kharijites began to reach, and it was learnt that they had butchered the governor of Nahrawan namely `Abdullah ibn Khabbab ibn al-Aratt and his slave maid with the child in her womb, and have killed three women of Banu Tayyi and Umm Sinan as-Saydawiyyah. Amir al-mu'minin sent al-Harith ibn Murrah al-`Abdi for investigation but he too was killed by them. When their rebellion reached this stage it was necessary to deal with them.

Consequently, the army turned towards Nahrawan. On reaching there Amir al-mu'minin sent them word that those who had killed `Abdullah ibn Khabbab ibn al-Aratt and innocent women should be handed over to him for avenging blood.