Jarir bin Abdullah Bajali was sent to Damascus. He was carrying a letter for Mu'awiya. Some delay occurred in his return. Imam Ali (a) felt anxious about his safety and wrote the following letter to him:
Now then, when you receive this letter of mine ask Mu'awiyah to take a final decision and to follow a determined course.Then ask him to choose either war that exiles him from home or ignoble peace. If he chooses war leave him alone, but if he chooses peace secure his allegiance; and that is an end to the matter.