"I heard Ali saying: 'Indeed I am a man who, when I heard a Hadith from Messenger of Allah (S) then Allah causes me to benefit from it as much as He wills for me to benefit from it. When a man among his Companions narrated to me I ask him to swear an oath to me about it, and when he swears an oath to me I trust him. And Abu Bakr narrated to me - and Abu Bakr told the truth - he said: "I heard Messenger of Allah (S) saying: 'There is no man who commits a sin, then makes Wudu, then performs Salat, then seeks forgiveness from Allah, except that Allah forgives him.' Then he recited this Ayah: Those who when they have committed Fahishah or wronged themselves with eveil, remember Allah. (3:135) until the end of the Ayah."  

سَمِعْتُ عَلِيًّا يَقُولُ إِنِّي كُنْتُ رَجُلاً إِذَا سَمِعْتُ مِنْ رَسُولِ اللَّهِ ﷺ حَدِيثًا نَفَعَنِي اللَّهُ مِنْهُ بِمَا شَاءَ أَنْ يَنْفَعَنِي بِهِ وَإِذَا حَدَّثَنِي رَجُلٌ مِنْ أَصْحَابِهِ اسْتَحْلَفْتُهُ فَإِذَا حَلَفَ لِي صَدَّقْتُهُ وَإِنَّهُ حَدَّثَنِي أَبُو بَكْرٍ وَصَدَقَ أَبُو بَكْرٍ قَالَ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ مَا مِنْ رَجُلٍ يُذْنِبُ ذَنْبًا ثُمَّ يَقُومُ فَيَتَطَهَّرُ ثُمَّ يُصَلِّي ثُمَّ يَسْتَغْفِرُ اللَّهَ إِلاَّ غَفَرَ اللَّهُ لَهُ ثُمَّ قَرَأَ هَذِهِ الآيَةَ (وَالَّذِينَ إِذَا فَعَلُوا فَاحِشَةً أَوْ ظَلَمُوا أَنْفُسَهُمْ ذَكَرُوا اللَّهَ فَاسْتَغْفَرُوا لِذُنُوبِهِمْ وَمَنْ يَغْفِرُ الذُّنُوبَ إِلاَّ اللَّهُ وَلَمْ يُصِرُّوا عَلَى مَا فَعَلُوا وَهُمْ يَعْلَمُونَ ) قَالَ وَفِي الْبَابِ عَنِ ابْنِ مَسْعُودٍ وَأَبِي الدَّرْدَاءِ وَأَنَسٍ وَأَبِي أُمَامَةَ وَمُعَاذٍ وَوَاثِلَةَ وَأَبِي الْيَسَرِ وَاسْمُهُ كَعْبُ بْنُ عَمْرٍو