I heard ‘Ali say: If I heard a hadeeth from the Messenger of Allah ﷺ, Allah benefitted me as He willed thereby. If someone else told me something from him I would ask him to swear, and if he swore I would believe him. Abu Bakr told me - and Abu Bakr told the truth - that he heard the Prophet ﷺ say: ʿThere is no believer who commits a sin, then does wudooʿ and does it well and prays two rak'ahs and asks Allah, may He be glorified and exalted, for forgiveness but Allah will forgive him.ʿ Then he recited the verse: ʿAnd those who, when they have committed Fahishah (illegal sexual intercourse) or wronged themselves...ʿ (Al ‘Imran 3:135).
سَمِعْتُ مِنْ رَسُولِ اللهِ ﷺ حَدِيثًا نَفَعَنِي اللهُ بِمَا شَاءَ أَنْ يَنْفَعَنِي مِنْهُ وَإِذَا حَدَّثَنِي غَيْرُي اسْتَحْلَفْتُهُ فَإِذَا حَلَفَ لِي صَدَّقْتُهُ وَحَدَّثَنِي أَبُو بَكْرٍ وَصَدَقَ أَبُو بَكْرٍ قَالَ قَالَ رَسُولُ اللهِ ﷺ مَا مِنْ عَبْدٍ مُؤْمِنٍ يُذْنِبُ ذَنْبًا فَيَتَوَضَّأُ فَيُحْسِنُ الطُّهُورَ ثُمَّ يُصَلِّي رَكْعَتَيْنِ فَيَسْتَغْفِرُ اللهَ إِلَّا غَفَرَ اللهُ لَهُ ثُمَّ تَلا {وَالَّذِينَ إِذَا فَعَلُوا فَاحِشَةً أَوْ ظَلَمُوا أَنْفُسَهُمْ} [آل عمران 135]