(33) باب إِذَا شَرِبَ الْكَلْبُ فِي إِنَاءِ أَحَدِكُمْ فَلْيَغْسِلْهُ سَبْعًا
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "If a dog drinks from the utensil of anyone of you it is essential to wash it seven times." (ID)
Reference (ID): Sahih al-Bukhari 172 (ID)
In-book reference (ID): Book 4, Hadith 38 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 4, Hadith 173 (ID)