Musnad Ahmad 3569

It was narrated that 'Alqamah said: I was walking with 'Abdullah in Mina when he was met by 'Uthman. He stood and talked with him and ‘Uthman said to him: O Abu 'Abdur-Rahman, shall we not marry you to a young girl who can remind you of times past? ‘Abdullah said: If that is what you are telling me, (let me tell you that) The Messenger of Allah (ﷺ) said to us: "O young men, whoever among you can afford it, let him get married, for it is more effective in lowering the gaze and guarding one's chastity. And whoever cannot afford it should fast, for it will be a shield for him.”