Ibn `Abbas told that the Prophet said when he was in a round tent on the day of Badr, "O God, I ask Thee to fulfil Thy covenant and promise. O God, if Thou willest Thou shalt not be worshipped after to-day." Abu Bakr then took him by the hand and said, "What you have supplicated is enough, messenger of God; you have importuned your Lord." So, he went out hurrying in a coat of mail and saying, "The company will be routed and turn their backs[*]."
*Quran; 54:45
Bukhari transmitted it.