(The Messenger...
(The Messenger, New York, 1946) The appointment of Usama as general was not, however, the only reason why some of the companions did not want to go to Syria. There were some other reasons also why they believed it was absolutely essential for them to stay in Medina, regardless of the orders of the Messenger of God. Usama asked the Prophet if it would not be better to defer the invasion of Syria until his recovery from fever. But the Prophet said: “No.
I want you to leave this very moment.” Usama went to his camp at Jorf but few of the companions came to report for duty. They knew that the sickness of the Prophet had brought a “crisis” upon the umma (community), and they considered it “unsafe” to leave Medina at a time like this though they considered it quite “safe” to defy his orders. They put the golden rule of “Safety First” ahead of the orders of the Messenger of God.
The Prophet had fever and severe headache but he managed to go into the mosque, and to address the assembly there which included many of the stragglers, thus: “O Arabs! You are miserable because I have appointed Usama as your general, and you are raising questions if he is qualified to lead you in war. I know you are the same people who had raised the same question about his father. By God, Usama is qualified to be your general just as his father was qualified to be a general.
Now obey his orders and go.” Betty Kelen Soon after the farewell pilgrimage, with his ambition speeding ever northward as if in advance of destiny, Muhammad organized a new expeditionary force to Syria, putting Zayd's son, Usama, in charge of it – against the advice of some of his generals, since Usama was only twenty.
Muhammad told them sharply, 'You carp at him as you carped at his father, but he is just as worthy of command as his father was.' He no longer needed to waste time excusing his actions. He placed his standard in Usama's hands and sent him off to the mustering ground, but the argument rankled in his mind all the same. (Muhammad, Messenger of God) Whenever the Prophet felt slight relief from his fever and headache, he questioned those present if Usama's army had left for Syria.
He kept urging them, 'Send off the army of Usama immediately.' The rank-and-file of the army obeyed the orders of the Prophet, and reported for duty to their commanding officer at Jorf but most of the senior companions did not.