Mostly in favor of the tribes were the decisions...

Mostly in favor of the tribes were the decisions, so they threatened the Kufiyan's unity, exactly what the Umayyads took advantage of several times. Here it looks essential that we get acquainted with the Iraqi's state on the threshold of Hasan Ibn 'Ali's Imamate. Were these people familiarized, the next developments in Iraq would be well comprehended. Doing research on Imam Hasan's disciples, Sheykh Mufid classified people into categories.

Imam 'Ali's Shi'ite Muslims; the Kharijites who were intent on fighting Mu'awiya and due to Imam Mujtaba's intention of battling against Damascus allied with him. Those greedy for the booty; Common people negligent of what to do; and the group included those with tribal prejudice who obeyed their chiefs disregarding the religion.[^3]1509 The number of those belonging to the third group exceeded all. As Iraq was the center of eastern conquests, they gained a great deal of booty in all wars.

Yet, since Imam 'Ali's entrance to the land civil wars began; therefore, they assumed the 'Alawites as debtors.[^4] After Nahrawan, they did not deem to the good of themselves to start a new war in the prevailing status. With the rumors spread by Mu'awiya's spies in Iraq, doubt expanded among the Iraqis. The Kharijites' emergence added to their doubt and undermined them to understand the situation.

Regardless of what said above, the people of Iraq, as matter of fact, had expressed themselves encountering the rulers of a hundred years. The honor they had gained during the years of conquering Iran had made them dominant over the Prophet's Medina and when dissatisfied of any ruler, they compelled even 'Umar to depose him. The figures who were not among the tricksters seemed to be defeated.

'Ammar Ibn Yasir as a righteous man as well as Sa'd Ibn Abi Waqqas as an un-political person could never tolerate the state of Kufa. In spite of it Mughira Ibn Shu'ba, a powerful debauchee (as described by 'Umar), could rule over Kufa for years.[^5]1511 Later on, with Imam 'Ali's emigration from Medina to Kufa, it developed and the significance of its role in the Islamic world multiplied.

His ethical and scientific background as well as his devotion during the life of Islam led people to rise up and help him. The Prophet's disciples and his own close followers joining to his army added to his might and allowed no one to overcome him for a time.