This letter was written by Imam Ali (peace be upon him) to Talha and Zubair. In historical context, this letter comes at a time when severe disagreements had arisen within the Islamic community regarding the caliphate. Talha and Zubair, who were initially considered supporters of Imam Ali, had turned against him. In this letter, Imam Ali clarified the matter of allegiance. He emphasized that people willingly pledged allegiance to him, not out of fear or greed.

Imam Ali urged Talha and Zubair to repent for their betrayal if they had pledged allegiance willingly. This is an important message about the necessity of upholding one's commitments, especially those made before Allah. He also stated that if their allegiance was out of distaste, they should not display their disobedience, as it would serve as evidence against them.

The statement in the letter where Imam Ali asserts, 'I did not kill Uthman,' is a declaration of his innocence. He referenced the presence of others who could testify that he did not engage in any rebellion. This message highlights that Imam Ali always spoke the truth and clarified his position.

Imam Ali advised Talha and Zubair to refrain from their current attitude, as their present state could lead to shame. This serves as an important lesson that one should be aware of their mistakes and strive to correct them. The letter from Imam Ali is also a moral lesson that one should uphold their commitments and seek repentance before Allah.