Urinating While Standing.
Narrated Hudhaifah: The Messenger of Allah صلی اللہ علیہ وسلم came to a midden of some people and urinated while standing. He then asked for water and wiped his shoes. Abu Dawud said: Musaddad, a narrator, reported: I went far away from him. He then called me and I reached just near his heals.
Narrated Umaymah daughter of Ruqayqah: The Prophet صلی اللہ علیہ وسلم had a wooden vessel under his bed in which he would urinate at night.