Sahih Muslim Book 008, Hadith Number 3232.

Chapter: One who can support a wife should marry.

'Alqama reported: While I was going along with 'Abdullah b. Ma'sud (Allah he pleased with him) in Mina, 'Uthman b. 'Affan (Allah be pleased with him) happened to meet him and said: Come here, Abu 'Abd al-Rahman (kunya of Abdullah b. Ma'sud), and he isolated him (from me), and when 'Abdullah (b. Ma'sud) saw that there was no need (for this privacy), he said to me: 'Alqama, come on, and so I went there. (Then) 'Uthman said to him: Abu Abd al-Rahman, should we not marry you to a virgin girl that your past may be recalled to your mind? 'Abdullah said: If you say so, the rest of the hadith is the same as narrated above.