Muawiyah was governor of the Levant in Arabia (now Syria, Lebanon, Jordan, Palestine). He had rejected Ali`s repeated demands for loyalty when Ali was elected the fourth caliph and was therefore in conflict with him.  When Ali was assassinated and people were loyal to Hasan, Muawiyah was preparing to attack Hasan. As a result, the skirmishes between the armies of Hasan and Muawiyah were repeated without conclusive result.  Had Imam Hasan (as) entered into a peace agreement with Muawiya as an agreement between two parties in another dispute, instead of giving loyalty, and if, by the agreement, he had temporarily handed over the government to Muawiya under certain conditions and not the high religious authority known as the “caliphate”? He ripped off his sword and then entered the camel market and without distinguishing between male or female camels, he continued to cut their bumps. People, so Asha`ath called you (again) an infidel (kafir). Then he threw away his sword and said, “By God I did not fall, but this person (your caliph) gave his sister in marriage to me, and if we were in our country, we would also have launched a banquet. The inhabitants of Medina, the battles and the feasts, the owners of camels, come and take revenge. 1. Siyar alam-al-Nubala, volume 2, pages 38 39 2. al Mujam-al Kabir, at-Tabarani, v1, Tradition 649, p.
237, Baghdad Edition) On the other hand, all historians agree on the terms of the treaty before it was signed, but Muawiya did not respect it after the treaty was signed and announced. Another reason why Semittifisch Zuhri is unreliable is that it does not explain the terms of the agreement proposed previously, nor the details of those that were added later, nor even that it is able to give a logical date for the blank paper that is sent! All these authors have clearly written that according to the agreement, the rule should return to Muawiya to Imam Hasan (as). That said, there are other sources of evidence that are beyond doubt to accept this condition. It was a great political success of Imam Al-Mujtaba (as) that he obtained Muawiya`s approval for the full protection of his loyal supporters. It is the duty of a true leader to protect the life and honor of his disciples and followers, or to sacrifice them for a noble cause. “The second message concerns the treaty between Mu`awiya and Hasan, and Dakhan refers to some of the governors of Mu`awiya as Ziyad in Iraq.” “For two reasons, there does not seem to be any logical reason for this condition: 1. Until the period of the peace agreement, Imam Hasan (as) was the undisputed caliph of the Kufa. That is why the Bait-ul-Maal was in his custody; This is natural for anyone who reads something about the Imamiyah sect that they attribute to Mu`awiyah for fighting Ali.