Sahih Muslim 7185
صحيح مسلم#7185SahihIt is transmitted on the authority of Abu Huraira that Allah's Messenger (ﷺ) said:The molar tooth of an unbeliever or the canine teeth of an unbeliever will be like Uhud and the thickness of his skin a three night's journey
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 53:54