Talha bin Abdur Rahman bin Awf narrated, and he was the most knowledgeable about this issue, and from Abu Salamah bin Abdur Rahman bin Awf, it is narrated that Abdur Rahman bin Awf (may Allah be pleased with him) gave his wife a final (irrevocable) divorce during his illness. So Uthman (may Allah be pleased with him) made her an heir to his wealth after her waiting period had ended.
Hadith Referenceمسند الإمام الشافعي / كتاب الفرائض والوصية / 1352
Hadith Takhrijاسناده صحيح اخرجه البيهقي : 462/7 - وفى المعرفة السنن والآثار (4487) - وعبد الرزاق (12195)۔ وسعيد بن منصور (1970)۔