On the 21st night of Ramadhan, at midnight, the commander of the faithful becomes certain that his stay in the world has come to an end and he must go to be with the lord. So, he calls Imam Hassan (AS) and Imam Hussein (AS) and says: I was hit only once, if you are not going to forgive him after my death, and want to retaliate, God has not allowed you to hit more than once. In other word, Imam Ali practiced the morality of justice even for his murderer.
source : erfan.ir
