Hadith 9.1
Purification
Abu Huraira reported God’s messenger as saying, “When a dog drinks out of a vessel belonging to any of you, he must wash it seven times,” (Bukhari and Muslim) In a version by Muslim he said, “When a dog laps the water in a vessel belonging to any of you, he must wash it seven times, using earth the first time.”
عَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِذَا شَرِبَ الْكَلْبُ فِي إِنَاء أحدكُم فليغسله سبع مَرَّات» وَفِى رِوَايَةٍ لِمُسْلِمٍ: «طَهُورُ إِنَاءِ أَحَدِكُمْ إِذَا وَلَغَ فِيهِ الْكَلْبُ أَنْ يَغْسِلَهُ سَبْعَ مَرَّاتٍ أولَاهُنَّ بِالتُّرَابِ»
Hadith gradings, numbering and translations can differ between editions. For legal rulings or detailed interpretation, consult qualified scholarship and the referenced edition.