I advise you (both) to fear Allāh and that you should not hanker after the (pleasures of this) world even though it may run after you. Do not be sorry for anything of this world that you have been denied. Speak the truth and act (in expectation) for reward. Be an enemy of the oppressor and helper of the oppressed.
I advise you (both) and all my children and members of my family and everyone whom my writing reaches, to fear Allāh, to keep your affairs in order, and to maintain good relations among yourselves for I have heard your grand-father (the Holy Prophet – S) saying, “Improvement of mutual differences is better than general prayers and fastings.”
(Fear) Allāh (and) keep Allāh in view in the matter of your neighbours, because they were the subject of the Prophet’s advice. He went on advising in their favour till we thought he would allow them a share in inheritance.
You should keep to a respect for kinship and spending for others. Avoid turning away from one another and severing mutual relations. Do not give up bidding for good and forbidding from evil lest the mischievous gain positions over you, and then if you will pray, the prayers will not be granted.
Then he said: O’ sons of ‘Abd al-Muṭṭalib, certainly I do not wish to see you plunging harshly into the blood of Muslims shouting “Amīr al-mu’minīn has been killed.” Beware, do not kill on account of me except my killer.
Wait till I die by his (Ibn Muljam’s) existing stroke. Then strike him one stroke for his stroke and do not dismember the limbs of the man, for I have heard the Messenger of Allāh (S) saying, “Avoid cutting limbs even though it may be a rabid dog.”