The preparation of Usamah’s army
The Prophet ﷺ appointed Usamah, the eighteen- to twenty-year-old son of Zayd ibn Harithah, the martyr of Mu’tah, as commander of the army to be sent to the Byzantine frontier; great Companions such as Abu Bakr and Umar were also in that army. To those who criticised the young Usamah’s command he replied, “His father was worthy of command, and so is he.” While the army was being readied at al-Jurf, the Prophet’s illness grew worse and the expedition was postponed; as soon as Abu Bakr became caliph, he sent this army on its way.

