حَدَّثَنَا مُحَمَّدُ بْنُ رُمْحٍ، حَدَّثَنَا اللَّيْثُ بْنُ سَعْدٍ، عَنْ يَزِيدَ بْنِ أَبِي حَبِيبٍ، عَنْ أَبِي الْخَيْرِ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرِو بْنِ الْعَاصِ، عَنْ أَبِي بَكْرٍ الصِّدِّيقِ، . أَنَّهُ قَالَ لِرَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ عَلِّمْنِي دُعَاءً أَدْعُو بِهِ فِي صَلاَتِي . قَالَ " قُلِ اللَّهُمَّ إِنِّي ظَلَمْتُ نَفْسِي ظُلْمًا كَثِيرًا وَلاَ يَغْفِرُ الذُّنُوبَ إِلاَّ أَنْتَ فَاغْفِرْ لِي مَغْفِرَةً مِنْ عِنْدِكَ وَارْحَمْنِي إِنَّكَ أَنْتَ الْغَفُورُ الرَّحِيمُ " .
It was narrated from Abu Bakr Siddiq that : he said to the Messenger of Allah (saas): "Teach me a supplication which I can say during my prayer." He said: "Say: Allahumma inni zalamtu nafsi zulman kathiran wa la yaghfirudh-dhunub illa Anta, faghfirli maghfiratan min 'indika warhamni, innaka Antal-Ghafurur-Rahim (O Allah, I have wronged myself greatly and no one forgives sins but You, so grant me forgiveness from You and have mercy on me, for You are the Oft-Forgiving, Most Merciful)." Translation Not Available
Book Ref: Sunan Ibn Majah Book 34 Hadith 3835
Web Ref: Sunan Ibn Majah Vol 5 Book 34 Hadith 3835