Maliks Muwatta Book 029, Hadith Number 040.

Section : Divorce of Sick Men.

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.