Sahih Muslim 5894
صحيح مسلم#5894SahihSa`d reported Allah's Apostle (ﷺ) as saying:It is better for the belly of any one of you to be stuffed with pus rather than to stuff (one's mind) with poetry
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: 41:9