Sahih BukhariVolume 6, Book 60, Number 398

Narrated Abbas:

Allah's Apostle while in a tent on the day of the Battle of Badr, said, "O Allah! I request you (to fulfill) Your promise and contract! O Allah! If You wish that you will not be worshipped henceforth.." On that Abu Bakr held the Prophet by the hand and said, "That is enough, O Allah's Apostle You have appealed to your Lord too pressingly," while the Prophet was putting on his armor. So Allah's Apostle went out, reciting Their multitude will be put to flight, and they will show their backs.' (54.45)