I heard Allah's Messenger (ﷺ) as saying: The truest word which the poet stated is the word of Labid: "Behold! apart from Allah everything is vain."
Sahih Muslim Book 41, Hadith 7
← Previous Hadith The truest couplet recited by a poet is: "Behold! apart from Allah everything is vain," and he made no addition to it.

Sahih Muslim Book 41, Hadith 6 Next Hadith → 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.

Sahih Muslim Book 41, Hadith 8