(55) باب عِدَّةِ الْمُتَوَفَّى عَنْهَا زَوْجُهَا
A similar report was narrated from Safiyyah bint Abi 'Ubaid from one of the wives of the Prophet -and she is Umm Salamah- from the Prophet. (ES)
Reference (ES): Sunan an-Nasa'i 3505 (ES)
In-book reference (ES): Book 27, Hadith 117 (ES)
English translation (ES): Vol. 4, Book 27, Hadith 3535 (ES)