(3) باب نَفَقَةِ نِسَاءِ النَّبِيِّ صلى الله عليه وسلم بَعْدَ وَفَاتِهِ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "My heirs should not take even a single Dinar (i.e. anything from my property), and whatever I leave, excluding the expenditure of my wives and my laborers, will be Sadaqa (i.e. be used for charity)."'
Reference: Sahih al-Bukhari 3096
In-book reference: Book 57, Hadith 5
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 53, Hadith 328