حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ أَبِي الزِّنَادِ، عَنْ سُلَيْمَانَ بْنِ يَسَارٍ، أَنَّ نُفَيْعًا، مُكَاتَبًا كَانَ لأُمِّ سَلَمَةَ زَوْجِ النَّبِيِّ صلى الله عليه وسلم أَوْ عَبْدًا لَهَا كَانَتْ تَحْتَهُ امْرَأَةٌ حُرَّةٌ فَطَلَّقَهَا اثْنَتَيْنِ ثُمَّ أَرَادَ أَنْ يُرَاجِعَهَا فَأَمَرَهُ أَزْوَاجُ النَّبِيِّ صلى الله عليه وسلم أَنْ يَأْتِيَ عُثْمَانَ بْنَ عَفَّانَ فَيَسْأَلَهُ عَنْ ذَلِكَ فَلَقِيَهُ عِنْدَ الدَّرَجِ آخِذًا بِيَدِ زَيْدِ بْنِ ثَابِتٍ فَسَأَلَهُمَا فَابْتَدَرَاهُ جَمِيعًا فَقَالاَ حَرُمَتْ عَلَيْكَ حَرُمَتْ عَلَيْكَ ‏.‏

Yahya related to me from Malik from Abu'z-Zinad from Sulayman ibnYasar that Nufay, a mukatab of Umm Salama the wife of the Prophet, mayAllah bless him and grant him peace, or her slave, had a free woman asa wife. He divorced her twice, and then he wanted to return to her.The wives of the Prophet, may Allah bless him and grant him peace,ordered him to go to Uthman ibn Affan to ask him about it. He foundhim at ad-Daraj with Zayd ibn Thabit. He asked them, and they bothanticipated him and said, "She is haram for you. She is haram foryou." Translation Not Available

Book Ref: Muwatta Imam Malik Book 29 Hadith 1207
Web Ref:  Muwatta Imam Malik Book 29 Hadith 47