الآنية
Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "When a dog drinks from the vessel of any of you, let him wash it seven times." A narration by Muslim adds: "The first of which should be with dust." ‘Abdullāh ibn Mughaffal (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: ''When a dog laps a vessel, wash it seven times, and rub it with dust in the eighth time.”
عن أبي هريرة -رضي الله عنه- عن النبي -صلى الله عليه وسلم- قال:« إذا شَرِب الكلب في إناء أحَدِكُم فَليَغسِلهُ سبعًا». ولمسلم: « أولاهُنَّ بالتُراب». عن عبد الله بن مغفل -رضي الله عنهما- عن النبي -صلى الله عليه وسلم- قال:« إذا وَلَغ الكلب في الإناء فاغسلوه سبعًا وعفَّرُوه الثَّامِنَة بالتُّراب».
شرح الحديث :
As the dog is one of the animals that are disliked, which carry many impurities and diseases, the Wise Legislator has ordered washing seven times the utensils which they lap. The first wash should include dust followed by water, so as to thoroughly eliminate impurities and harms.