Sahih Muslim 5379
صحيح مسلم#5379SahihAbu Huraira reported that Allah's Messenger (ﷺ) invited a non-Muslim. Allah's Messenger (ﷺ) commanded that a goat be milked for him. It was milked and he drank its milk. Then the second one was milked and he drank its milk, and then the other one was milked and he drank its milk. till he drank the milk of seven goats. On the next morning he embraced Islam. And Allah's Messenger (ﷺ) commanded that a goat should be milked for him and he drank its milk and then another was milked but he did not finish it, whereupon Allah's Messenger (ﷺ) said:A believer drinks In one intestine whereas a non-believer drinks in seven intestines
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: 36:253