Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with him) that on the day of Badr, the Messenger of Allah (peace and blessings of Allah be upon him) set out with three hundred and fifteen (military Companions) and made this supplication: "O Allah! They are barefoot, so provide them with mounts. O Allah! They are unclothed, so clothe them. O Allah! They are hungry, so satisfy their hunger." So Allah Almighty granted victory on the day of Badr, and when they returned, every man returned with one or two camels, they also received clothing, and they were satisfied.