By the servant of God, Ali Ameerul Momineen, peace be upon him, in the name of those people who became angry with Allah, at that time, disobedience to Allah and tolerance of His truth was being done on earth, and oppression had covered every good and bad local and foreigner with its canopy. You should not know that I have sent to you one of the servants of Allah, who does not sleep in the days of danger and is not harassed by the enemy in the hours of fear, and is more severe than the fire that is kindled for the early risers. If he tells you to go towards the enemies, then go ahead and if he tells you to stay, then stay, because they will neither advance nor retreat without my orders, neither will they turn anyone back, nor will they advance anyone.