question #1 Sahih al-Bukhari 500, Book 8, Hadith 147 : What practices did the companions of the Prophet (ﷺ) follow to assist him during his personal needs?

Whenever the Prophet (ﷺ) went for answering the call of nature, I and another boy used to go after him
with a staff, a stick or a short spear (or stick) and a tumbler of water and when he finished from
answering the call of nature we would hand that tumbler of water to him.