The Book of Purification and its Sunnah
1/31. Chapter:
Washing a vessel that has been licked by a dog
Sunan Ibn Majah
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا شَبَابَةُ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي التَّيَّاحِ، قَالَ سَمِعْتُ مُطَرِّفًا، يُحَدِّثُ عَنْ عَبْدِ اللَّهِ بْنِ الْمُغَفَّلِ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ " إِذَا وَلَغَ الْكَلْبُ فِي الإِنَاءِ فَاغْسِلُوهُ سَبْعَ مَرَّاتٍ وَعَفِّرُوهُ الثَّامِنَةَ بِالتُّرَابِ " .
It was narrated from 'Abdullah bin Mughaffal that: The Messenger of Allah said: 'If a dog licks a vessel, wash it seven times and rub it with dust the eight times."
Reference : Sunan Ibn Majah 365In-book reference : Book 1, Hadith 99English translation : Vol. 1, Book 1, Hadith 365