Yahya related to me from Malik from Abu'z-Zinad from Sulayman ibn Yasar that Nufay, a mukatab of Umm Salama the wife of the Prophet ﷺ or her slave, had a free woman as a wife. He divorced her twice, and then he wanted to return to her. The wives of the Prophet ﷺ ordered him to go to Uthman ibn Affan to ask him about it. He found him at ad-Daraj with Zayd ibn Thabit. He asked them, and they both anticipated him and said, "She is haram for you. She is haram for you."
أَنَّ نُفَيْعًا مُكَاتَبًا كَانَ لأُمِّ سَلَمَةَ زَوْجِ النَّبِيِّ ﷺ أَوْ عَبْدًا لَهَا كَانَتْ تَحْتَهُ امْرَأَةٌ حُرَّةٌ فَطَلَّقَهَا اثْنَتَيْنِ ثُمَّ أَرَادَ أَنْ يُرَاجِعَهَا فَأَمَرَهُ أَزْوَاجُ النَّبِيِّ ﷺ أَنْ يَأْتِيَ عُثْمَانَ بْنَ عَفَّانَ فَيَسْأَلَهُ عَنْ ذَلِكَ فَلَقِيَهُ عِنْدَ الدَّرَجِ آخِذًا بِيَدِ زَيْدِ بْنِ ثَابِتٍ فَسَأَلَهُمَا فَابْتَدَرَاهُ جَمِيعًا فَقَالاَ حَرُمَتْ عَلَيْكَ حَرُمَتْ عَلَيْكَ