مُسْنَدُ أَبِي بَكْرٍ الصِّدِّيقِ رَضِيَ اللَّهُ عَنْهُ
1  
Musnad Abu Bakr as-Siddiq (ra)
Musnad Ahmad 47, 48
Ali said:
If Heard something from the Messenger of Allah (ﷺ), Allah would benefit me thereby as He willed. Abu Bakr told me - and Abu Bakr spoke the truth - he said: The Messenger of Allah (ﷺ) said: `There is no Muslim who commits a sin then does wudu' and prays two rak'ahs then asks Allah for forgiveness for that sin, but He will forgive him.” And he recited these two verses: `And whoever does evil or wrongs himself but afterwards seeks Allah's forgiveness, he will find Allah Oft-Forgiving Most Merciful` [an-Nisa’ 4:110] “And those who, when they have committed Fahishah (illegal sexual intercourse) or wronged themselves with evil, remember Allah and ask forgiveness for their sins;-and none can forgive sins but Allah - and do not persist in what (wrong) they have done, while they know` [Al ‘Imran 3:135]

Shu'bah said: I heard 'Uthman from the family of Abu 'Aqeel athThaqafi say--but he said. Shu'bah said: And he recited one of these two verses: `whosoever works evil, will have the recompense thereof` [an-Nisa'4:110] or “And those who, when they have committed Fahishah (illegal sexual intercourse)...` [Al 'Imran 3:135).

حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، حَدَّثَنَا شُعْبَةُ، عَنْ عُثْمَانَ بْنِ الْمُغِيرَةِ، قَالَ سَمِعْتُ عَلِيَّ بْنَ رَبِيعَةَ، مِنْ بَنِي أَسَدٍ يُحَدِّثُ عَنْ أَسْمَاءَ، أَوْ ابْنِ أَسْمَاءَ مِنْ بَنِي فَزَارَةَ قَالَ قَالَ عَلِيٌّ رَضِيَ اللَّهُ عَنْهُ كُنْتُ إِذَا سَمِعْتُ مِنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ شَيْئًا نَفَعَنِي اللَّهُ بِمَا شَاءَ أَنْ يَنْفَعَنِي مِنْهُ وَحَدَّثَنِي أَبُو بَكْرٍ وَصَدَقَ أَبُو بَكْرٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَا مِنْ مُسْلِمٍ يُذْنِبُ ذَنْبًا ثُمَّ يَتَوَضَّأُ فَيُصَلِّي رَكْعَتَيْنِ ثُمَّ يَسْتَغْفِرُ اللَّهَ تَعَالَى لِذَلِكَ الذَّنْبِ إِلَّا غَفَرَ لَهُ وَقَرَأَ هَاتَيْنِ الْآيَتَيْنِ ‏{‏وَمَنْ يَعْمَلْ سُوءًا أَوْ يَظْلِمْ نَفْسَهُ ثُمَّ يَسْتَغْفِرْ اللَّهَ يَجِدْ اللَّهَ غَفُورًا رَحِيمًا‏}‏ ‏{‏وَالَّذِينَ إِذَا فَعَلُوا فَاحِشَةً أَوْ ظَلَمُوا أَنْفُسَهُمْ‏}‏ الْآيَةَ

حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ قَالَ سَمِعْتُ عُثْمَانَ مِنْ آلِ أَبِي عُقَيْلٍ الثَّقَفِيِّ إِلَّا أَنَّهُ قَالَ قَالَ شُعْبَةُ وَقَرَأَ إِحْدَى هَاتَيْنِ الْآيَتَيْنِ ‏{‏مَنْ يَعْمَلْ سُوءًا يُجْزَ بِهِ‏}‏ ‏{‏وَالَّذِينَ إِذَا فَعَلُوا فَاحِشَةً‏}‏‏.‏

Grade: Sahih (Darussalam) (Darussalam)
Reference : Musnad Ahmad 47, 48
In-book reference : Book 1, Hadith 46