Sahih Muslim 5889
صحيح مسلم#5889SahihAbu Huraira reported Allah's Messenger (ﷺ) as saying:The truest word uttered by a poet is this verse of Labid: "Behold! apart from Allah everything is vain," and Umayya b. Abu Salt was almost a Muslim
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: 41:4