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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bayhaqi:20567 – Abū al-Ḥusayn b. Bishrān > Abū al-Ḥusayn Isḥāq b. Aḥmad al-Kādhī > ʿAbdullāh b. Aḥmad b. Ḥanbal > ʿAbd al-Raḥman b. Mahdī > Muʿāwiyah b. Ṣāliḥ > ʿAbd al-Raḥman b. Jubayr b. Nufayr from his father > ʿAwf b. Mālik > Mā from Dhanb Illā

[Machine] "There is no sin except that I know its repentance," they said to him, "O Abu Abdur-Rahman, what is his repentance?" He said, "That he leaves it and does not return to it."  

البيهقي:٢٠٥٦٧ – وَأَخْبَرَنَا أَبُو الْحُسَيْنِ بْنُ بِشْرَانَ أنبأ أَبُو الْحُسَيْنِ إِسْحَاقُ بْنُ أَحْمَدَ الْكَاذِيُّ ثنا عَبْدُ اللهِ بْنُ أَحْمَدَ بْنِ حَنْبَلٍ ثنا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ ثنا مُعَاوِيَةُ بْنُ صَالِحٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ جُبَيْرِ بْنِ نُفَيْرٍ عَنْ أَبِيهِ عَنْ عَوْفِ بْنِ مَالِكٍ قَالَ

مَا مِنْ ذَنْبٍ إِلَّا وَأَنَا أَعْرِفُ تَوْبَتَهُ قَالُوا لَهُ يَا أَبَا عَبْدِ الرَّحْمَنِ وَمَا تَوْبَتُهُ؟ قَالَ أَنْ يَتْرُكَهُ ثُمَّ لَا يَعُودَ إِلَيْهِ  

See similar narrations below:

Collected by Ṭabarānī
tabarani:15224 – Bakr b. Sahl > ʿAbdullāh b. Ṣāliḥ > Muʿāwiyah b. Ṣāliḥ > ʿAbd al-Raḥman b. Jubayr b. Nufayr from his father > ʿAwf b. Mālik > Mā from Dhanb Illā > Aʿrif Tawbatah Qīl And Mā Tawbatuh

[Machine] "There is no sin except that I know its repentance." It was asked, "And what is its repentance?" He said, "To abandon it and not return to it."  

الطبراني:١٥٢٢٤ – حَدَّثَنَا بَكْرُ بْنُ سَهْلٍ ثنا عَبْدُ اللهِ بْنُ صَالِحٍ ثنا مُعَاوِيَةُ بْنُ صَالِحٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ جُبَيْرِ بْنِ نُفَيْرٍ عَنْ أَبِيهِ عَنْ عَوْفِ بْنِ مَالِكٍ قَالَ

«مَا مِنْ ذَنْبٍ إِلَّا وَأَنَا أَعْرِفُ تَوْبَتَهُ» قِيلَ وَمَا تَوْبَتُهُ؟ قَالَ «أَنْ يَتْرُكَهُ ثُمَّ لَا يَعُودَ»