The Book of Purification
2/27. Chapter:
Rulings on what was licked by a dog
Sahih Muslim
حَدَّثَنَا مُحَمَّدُ بْنُ رَافِعٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، حَدَّثَنَا مَعْمَرٌ، عَنْ هَمَّامِ بْنِ مُنَبِّهٍ، قَالَ هَذَا مَا حَدَّثَنَا أَبُو هُرَيْرَةَ، عَنْ مُحَمَّدٍ، رَسُولِ اللَّهِ صلى الله عليه وسلم . فَذَكَرَ أَحَادِيثَ مِنْهَا وَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " طُهُورُ إِنَاءِ أَحَدِكُمْ إِذَا وَلَغَ الْكَلْبُ فِيهِ أَنْ يَغْسِلَهُ سَبْعَ مَرَّاتٍ " .
Hammam b. Munabbih reported: Of the a hadith narrated by Abu Huraira from Muhammad, the Messenger of Allah (ﷺ), one is this: The Messenger of Allah (ﷺ) said: The purification of the utensil belonging to one amongst you, after it is licked by a dog, lies in washing it seven times.
Reference : Sahih Muslim 279eIn-book reference : Book 2, Hadith 118USC-MSA web (English) reference : Book 2, Hadith 550