question #1 Sahih al-Bukhari 152, Book 4, Hadith 18 : What practices did the Prophet Muhammad (ﷺ) follow for personal hygiene after answering the call of nature?

Whenever Allah’s Messenger (ﷺ) went to answer the call of nature, I along with another boy used to carry a
tumbler full of water (for cleaning the private parts) and a short spear (or stick).