وَعَنْ أَبِي بَكْرٍ الصِّدِّيقِ رَضِيَ اللَّهُ عَنْهُ
أَنَّهُ قَالَ: قُلْتُ: يَا رَسُولَ اللَّهِ عَلِّمْنِي دُعَاءً أَدْعُو بِهِ فِي صَلَاتِي قَالَ: «قُلْ اللَّهُمَّ إِنِّي ظَلَمْتُ نَفْسِي ظُلْمًا كَثِيرًا وَلَا يَغْفِرُ الذُّنُوبَ إِلَّا أَنْتَ فَاغْفِرْ لِي مَغْفِرَةً مِنْ عنْدك وارحمني إِنَّك أَنْت الغفور الرَّحِيم»
He asked God’s Messenger to teach him a supplication to use in his prayer, and he told him to say, “O God, I have greatly wronged myself, and Thou alone canst forgive sins, so grant me forgiveness from Thee and show mercy to me. Thou art the forgiving and the merciful One.”