ভূমিকা
Shiavault - a Vault of Shia Islamic Books A Probe into the History of Ashura' Chapter 8: Peace Treaty of Imam Hasan After Imam Ali, Imam Hasan attained to the caliphate. At this time the Muslim society had assumed a peculiar form. Their strength had been divided almost evenly, and if Imam Hasan had continued fighting against Mu'awiya neither of the two parties could expect victory without severe bloodshed. The result of such a fighting would have been disastrous for the Muslims.
Hence, Imam Hasan was faced with a situation in which he had no alternative but to come to terms with Mu'awiya and prevent senseless bloodshed. If he had persisted in fighting it would have resulted in gain to the Eastern Roman Empire on the external front and to the Khawarij within the Islamic territories.
If those 400,000 or 500,000 Muslims had attacked one another on that day and fighting with Mu'awiya had been continued only Allah knows what calamity would have fallen on the Muslims from the side of the Eastern Roman Empire and what dimensions the danger from Khawarij would have assumed, and what the history of Islam would have been!
Hence, Imam Hasan retired from the caliphate and thus safeguarded the blood of the Muslims and the strength of Islam, and prevented the external and internal enemies from taking undue advantage of the situation. This does not, however, mean that he surrendered to Mu'awiya and recognized him as the caliph and the Commander of the Faithful.
One of the conditions of the Peace Treaty between Imam Hasan and Mu'awiya reads thus: "Hasan bin Ali makes Peace on the condition that he will not be under an obligation to call Mu'awiya, the Commander of the Faithful". It meant that he did not recognize Mu'awiya to be the caliph and the Commander of the Faithful.
Those, who think that by retiring, Imam Hasan bin Ali surrendered to Mu'awiya and Mu'awiya became the caliph of the Muslims and Hasan bin Ali also became one of his obedient subjects, should keep in mind this valuable narration by Ibn Athir which refutes this false belief: "After Hasan bin Ali retired and Mu'awiya became the caliph, Farwa bin Nawfal Ashjaie Kharij, who had deserted the Khawarij earlier along with five hundred men and gone to the city of Zur said: "Now there is no doubt about the fact that we should fight against Mu'awiya's administration.
As Mu'awiya has come at the helm of affairs and become the caliph we must wage war against him".