(58) باب إِذَا وَقَعَ الذُّبَابُ فِي الإِنَاءِ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "If a fly falls in the vessel of any of you, let him dip all of it (into the vessel) and then throw it away, for in one of its wings there is a disease and in the other there is healing (antidote for it) i e. the treatment for that disease."
Reference: Sahih al-Bukhari 5782
In-book reference: Book 76, Hadith 93
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 71, Hadith 673