Sahih Muslim 5893
صحيح مسلم#5893SahihAbu Huraira reported Allah's Messenger (ﷺ) as saying:It is better for a man's belly to be stuffed with pus which corrodes it than to stuff (one's mind) with frivolous poetry. Abu Bakr has reported it with a slight variation of wording
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: 41:8