Another letter to Ziyad ibn Abih

An advice to Abdullah b. Abbas, which the latter claimed, that except for the advice of the Holy Prophet (s), no advice had been so beneficial to him as this

Instructions to his family a little before his martyrdom

His Will in which he has left instructions as to how to treat his property and estate. It was written after his return from the Battle of Siffin
Directions to assessors and collectors of Zakat
His instructions to Zakat collectors
Instructions to Muhammad b. Abu Bakr when he appointed him as the Governor of Egypt
A famous reply to the letter of Mu'awiya. It throws ample light on many phases of the history of Islam from the time of its dawn up to the time of Imam Ali (a)
To the people of Basra
To Mu'awiya