Muwatta Imam Malik Book of Divorce, Hadith 40
Yahya related to me from Malik from Ibn Shihab that Talha ibn Abdullah ibn Awf said, and he knew that better than them, from Abu Salama ibn Abd ar-Rahman ibn Awf that Abd ar-Rahman ibn Awf divorced his wife irrevocably while he was terminally ill, and Uthman ibn Affan made her an heir after the end of her idda.
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ طَلْحَةَ بْنِ عَبْدِ اللَّهِ بْنِ عَوْفٍ، - قَالَ وَكَانَ أَعْلَمَهُمْ بِذَلِكَ - وَعَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ، أَنَّ عَبْدَ الرَّحْمَنِ بْنَ عَوْفٍ، طَلَّقَ امْرَأَتَهُ الْبَتَّةَ وَهُوَ مَرِيضٌ فَوَرَّثَهَا عُثْمَانُ بْنُ عَفَّانَ مِنْهُ بَعْدَ انْقِضَاءِ عِدَّتِهَا .