Volume 4, Book 52, Number 303:
Narrated Ibn Umar:
That he was riding a horse on the day, the Muslims fought (against the Byzantines), and the com –
mander of the Muslim army was Khalid bin Al-Walid who had been appointed by Abu Bakr. The en –
emy took the horse away, and when the enemy was defeated, Khalid returned the horse to him.