Zayd bin Akhzm زيد بن أخزم · The Book of Purification and its Sunnah

"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.'"