Yahya related to me from Malik from Ibn Shihab from Said ibn al- Musayyab that Nufay, a mukatab of Umm Salama, the wife of the Prophet ﷺ divorced his free wife twice, so he asked Uthman ibn Affan for an opinion, and he said, "She is haram for you."
أَنَّ نُفَيْعًا مُكَاتَبًا كَانَ لأُمِّ سَلَمَةَ زَوْجِ النَّبِيِّ ﷺ طَلَّقَ امْرَأَةً حُرَّةً تَطْلِيقَتَيْنِ فَاسْتَفْتَى عُثْمَانَ بْنَ عَفَّانَ فَقَالَ حَرُمَتْ عَلَيْكَ
Yahya related to me from Malik from Abdu Rabbih ibn Said from Muhammad ibn Ibrahim ibn al-Harith at-Taymi that Nufay, a mukatab of Umm Salama, the wife of the Prophet ﷺ asked Zayd ibn Thabit for an opinion. He said, "I have divorced my free wife twice." Zayd ibn Thabit said, "She is haram for you."
أَنَّ نُفَيْعًا مُكَاتَبًا كَانَ لأُمِّ سَلَمَةَ زَوْجِ النَّبِيِّ ﷺ اسْتَفْتَى زَيْدَ بْنَ ثَابِتٍ فَقَالَ إِنِّي طَلَّقْتُ امْرَأَةً حُرَّةً تَطْلِيقَتَيْنِ فَقَالَ زَيْدُ بْنُ ثَابِتٍ حَرُمَتْ عَلَيْكَ