Sahih al-Bukhari 6154
صحيح البخاري#6154SahihNarrated Ibn `Umar:The Prophet (ﷺ) said, "It is better for a man to fill the inside of his body with pus than to fill it 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 al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 78:180