A Quranic Journal: Surah an-Nasr ayah 3

The duty of the Messenger and his companions whom Allah chose and gave the privilege of being the instruments of His victory, was to turn to Him at the climax of victory in praise, expressing gratitude and seeking forgiveness. Gratitude and praise are for His being so generous as to have chosen them to be the standard bearers of His religion; for the mercy and favour He did to all humanity by making His religion victorious; and for the Conquest of Makka and the people's collective acceptance of Islam. His forgiveness is sought for the various unrevealed, defective feelings, such as vanity, which sometimes creep into one's heart at the overwhelming moment of victory attained after a long struggle. Human beings can hardly prevent this happening and therefore Allah's forgiveness is to be sought for it. Forgiveness also has to be sought for what might have been insinuated into one's heart during the long and cruel struggle and for petulance resulting from the belatedness of victory or the effects of convulsive despair