If we regarded him Amir al-mu'minin why should this battle have been fought?

If we regarded him Amir al-mu'minin why should this battle have been fought?" At first Amir al-mu'minin refused to rub it off but when they did not in any way agree, he rubbed it off and said, "This incident is just similar to the one at al-Hudaybiyah when the unbelievers stuck on the point that the words 'Prophet of Allah' with the name of the Prophet should be removed and the Prophet did remove it." On this `Amr ibn al-`As got angry and said, "Do you treat us as unbelievers?" Amir al-mu'minin said, "On what day have you had anything to do with believers and when have you been their supporters?" However, after this settlement, the people dispersed, and after mutual consultation these two arbitrators decided that by removing both `Ali and Mu`awiyah from the Caliphate the people should be accorded the power to choose whomever they desired.

When time came to its announcement there was a meeting at Dumatu'l-Jandal, a place between Iraq and…