Asim al-Ahwal عاصم الأحول · General Behavior (Kitab Al-Adab)

I came to the Messenger of Allah (May peace be upon him) at the expedition to Tabuk when he was in a small skin tent. I gave him a salutation and he returned it, saying: come in. I asked : the whole of me Messenger of Allah? He replied : The whole of you. So I entered.

The Messenger of Allah (May peace be upon him) got up at night, fulfilled his need and washed his face and hand and then slept. Abu Dawud said: that is to say, he urinated

Have you experienced that? They replied: yes. He said : that is clear faith.