Sahih Muslim 3400
صحيح مسلم#3400SahihAbdullah (b. Mas'ud) (Allah be pleased with him) reported that Allah's Messenger (ﷺ) said to us:0 young men, those among you who can support a wife should marry, for it restrains eyes (from casting evil glances) and preserves one from immorality; but he who cannot afford It should observe fast for it is a means of controlling the sexual desire
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: 16:3