The Messenger of Allah ﷺ got up at night, relieved himself, then washed his face and hands and went back to sleep.
حدثنا عثمان بن أبي شيبة حدثنا وكيع عن سفيان عن سلمة بن كهيل عن كريب
أن رسول الله ﷺ قام من الليل فقضى حاجته فغسل وجهه ويديه ثم نام
Bukhari narrated it in the Book of Supplications, chapter, "Supplication upon Waking at Night," hadith no. 6316, and Muslim in the Book of the Prayer of Travelers, chapter, "The Prayer of the Prophet, may Allah bless him and grant him peace, and His Supplication at Night," hadith no. 763, from the hadith of Sufyan Thawri, with the same chain.