(1) باب اسْتِحْبَابِ النِّكَاحِ لِمَنْ تَاقَتْ نَفْسُهُ إِلَيْهِ وَوَجَدَ مُؤْنَةً وَاشْتِغَالِ مَنْ عَجَزَ عَنِ الْمُؤَنِ بِالصَّوْمِ
Abdullah (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.
Reference: Sahih Muslim 1400 c
In-book reference: Book 16, Hadith 3
USC-MSA web (English) reference(deprecated numbering scheme): Book 8, Hadith 3233