(27) باب حُكْمِ وُلُوغِ الْكَلْبِ
Abu Huraira reported:
The Messenger of Allah (ﷺ) said: The purification of the utensil belonging to any one of you, after it is licked by a dog, lies in washing it seven times, using sand for the first time.
Reference: Sahih Muslim 279d
In-book reference: Book 2, Hadith 117
USC-MSA web (English) reference(deprecated numbering scheme): Book 2, Hadith 549