Letter (70) is written by Imam Ali (peace be upon him) to Sahl ibn Hanif An-Nasari, the governor of Madinah. This letter was composed during a time when some individuals from Madinah were secretly aligning themselves with Muawiyah. The historical context highlights the political turmoil and divisions within the Muslim community following the assassination of Uthman and the subsequent rise of Muawiyah.

In this letter, Imam Ali (peace be upon him) addresses the issue of those who are straying from the path of truth and guidance. He advises Sahl not to lament the departure of those who have chosen to side with Muawiyah, indicating that their misguidance is a form of liberation for the faithful. This reflects a profound understanding that the loss of misguided individuals is not a loss, but rather a relief from their influence.

The Imam emphasizes that these individuals are driven by worldly desires, having recognized justice but choosing to abandon it for personal gain. This highlights a critical theme of the letter: the contrast between justice and the allure of power and privilege. Imam Ali (peace be upon him) points out that they are not fleeing from oppression but rather are turning away from justice, which serves as a reminder of the moral responsibilities that accompany leadership and governance.

Moreover, the letter expresses hope that God will ease the difficulties faced by the community. This demonstrates the importance of faith and reliance on divine assistance in challenging times. It encourages believers to remain steadfast in their commitment to justice and truth, regardless of the circumstances.

Ultimately, this letter serves as a timeless reminder of the need to uphold justice and integrity in the face of corruption and misguidance. It teaches us the importance of remaining steadfast in our principles and guiding others towards the truth, even when faced with adversity.