وَعَنْ أَبِي هُرَيْرَةَ رضى الله عنه
قَالَ: قَالَ رَسُولُ اَللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ -«طَهُورُ إِنَاءِ أَحَدِكُمْ إِذْ وَلَغَ فِيهِ اَلْكَلْبُ أَنْ يَغْسِلَهُ سَبْعَ مَرَّاتٍ، أُولَاهُنَّ بِالتُّرَابِ»
Narrated by Abu Hurayrah (rad): The Messenger of Allah (sallallahu alayhi wa sallam) said: “The cleansing of the utensil belonging to one of you, after it has been licked by a dog, is to wash it seven times, and using soil for cleaning at the first time.”.
Bulugh al-Maram 11, Book 1, The Book of Purification, Hadith 11. 1 min read