This letter is a bequest from Imam Ali (A.S.) to his sons Hasan and Hussain (A.S.) after he was struck by Ibn Muljam. It was written at a time when Imam Ali (A.S.) was severely wounded and near death. The letter emphasizes the importance of piety, detachment from worldly desires, and maintaining proper social conduct.

Imam Ali (A.S.) advises his sons to fear Allah and not to desire the world, even if it pursues them. This is a crucial message, as attachment to worldly possessions can lead one astray. He also instructs them to speak the truth and to perform good deeds for the sake of Allah’s reward.

A significant theme in this letter is to be an ally of the oppressed and an adversary of the oppressor. Imam Ali (A.S.) urges his sons to always support the oppressed and stand against tyranny. This serves as a moral lesson that we should always strive for justice and assist those in need.

Imam Ali (A.S.) extends his bequest to all his family and those who receive this letter, urging them to mend their relationships. He mentions that resolving disputes is better than regular prayers and fasting, highlighting the importance of social harmony and love.

He also emphasizes the need to be mindful of orphans, neighbors, and the Quran. This illustrates the significance of social responsibilities and the respect for the rights of others. Imam Ali (A.S.) describes prayer as the pillar of religion, underscoring its importance in a believer's life.

In conclusion, Imam Ali (A.S.) instructs that if he dies from this blow, only his murderer should be punished, and he advises against mutilating the body. This is a profound lesson in humanity, emphasizing that even in revenge, one should not lose their sense of compassion.

This letter reflects not only the character of Imam Ali (A.S.) but also provides guidance for us to become better individuals in society.