Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
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
nasai:3427 – ʿAmr b. ʿAlī > Yaḥyá > ʿAlī b. al-Mubārak > Yaḥyá b. Abū Kathīr > ʿUmar b. Muʿattib > Abū Ḥasan a freed slave of Banī Nawfal

"My wife and I were slaves, and I divorced her twice, then we were both set free. I asked Ibn 'Abbas and he said: 'If you take her back, you have two divorces left. This is how the Messenger of Allah ruled.'"  

النسائي:٣٤٢٧ – أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ قَالَ سَمِعْتُ يَحْيَى قَالَ حَدَّثَنَا عَلِيُّ بْنُ الْمُبَارَكِ قَالَ حَدَّثَنَا يَحْيَى بْنُ أَبِي كَثِيرٍ عَنْ عُمَرَ بْنِ مُعَتِّبٍ أَنَّ أَبَا حَسَنٍ مَوْلَى بَنِي نَوْفَلٍ أَخْبَرَهُ قَالَ كُنْتُ أَنَا وَامْرَأَتِي مَمْلُوكَيْنِ فَطَلَّقْتُهَا تَطْلِيقَتَيْنِ ثُمَّ أُعْتِقْنَا جَمِيعًا فَسَأَلْتُ ابْنَ عَبَّاسٍ فَقَالَ

إِنْ رَاجَعْتَهَا كَانَتْ عِنْدَكَ عَلَى وَاحِدَةٍ قَضَى بِذَلِكَ رَسُولُ اللَّهِ ﷺ خَالَفَهُ مَعْمَرٌ  

See similar narrations below:

Collected by Nasāʾī's Kubrá
nasai-kubra:5591 – ʿAmr b. ʿAlī > Yaḥyá / Ibn Saʿīd al-Qaṭṭān > ʿAlī b. al-Mubārak > Yaḥyá b. Abū Kathīr > ʿUmar b. Muʿattib > Abū Ḥasan a freed slave of Banī Nawfal

"My wife and I were slaves, and I divorced her twice, then we were both set free. I asked Ibn 'Abbas and he said: 'If you take her back, you have two divorces left. This is how the Messenger of Allah ruled.'" (Using translation from Nasāʾī 3427)   

الكبرى للنسائي:٥٥٩١ – أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ قَالَ سَمِعْتُ يَحْيَى وَهُوَ ابْنُ سَعِيدٍ الْقَطَّانُ قَالَ حَدَّثَنَا عَلِيُّ بْنُ الْمُبَارَكِ قَالَ حَدَّثَنِي يَحْيَى بْنُ أَبِي كَثِيرٍ عَنْ عُمَرَ بْنِ مُعَتِّبٍ أَنَّ أَبَا حَسَنٍ مَوْلَى بَنِي نَوْفَلٍ أَخْبَرَهُ قَالَ كُنْتُ أَنَا وَامْرَأَتِي مَمْلُوكَيْنِ فَطَلَّقْتُهَا تَطْلِيقَتَيْنِ ثُمَّ أُعْتِقْنَا جَمِيعًا فَسَأَلْتُ ابْنَ عَبَّاسٍ فَقَالَ

إِنْ رَاجَعْتَهَا كَانَتْ عِنْدَكَ عَلَى وَاحِدَةٍ «قَضَى بِذَلِكَ رَسُولُ اللهِ ﷺ»