Muwatta Malik
Hadith #1195
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