Sahih Muslim 788
صحيح مسلم#788SahihAbdullah b. Ibrahim b. Qariz reported that he found Abu Huraira performing ablution in the mosque, who said:I am performing ablution because of having eaten pieces of cheese, for I heard the Messenger of Allah (ﷺ) say: Perform ablution (after eating anything) touched by fire
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: 3:110