Sunan Ibn Majah
535
Sahih+3

It was narrated that Hudhaifah said:"The Prophet came out and met me when I was sexually impure, so I kept away from him. Then I had a bath and came to him. He said: 'What is the matter with you?' I said: 'I was sexually impure.' The Messenger of Allah said: 'The Muslim does not become impure

SahihAl-Albani
SahihMuhammad Fouad Abd al-Baqi