Hadith 150
Narrated Anas bin Malik: Whenever Allah's Apostle went to answer the call of nature, I along with another boy used to accompany him with a tumbler full of water. (Hisham commented, "So that he might wash his private parts with it.)"
Hadith 151
Narrated Anas: Whenever Allah's Apostle went to answer the call of nature, I along with another boy from us used to go behind him with a tumbler full of water.
Hadith 152
Narrated Anas bin Malik: Whenever Allah's Apostle 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).
Hadith 217
Narrated Anas bin Malik: Whenever the Prophet went to answer the call of nature, I used to bring water with which he used to clean his private parts.
Hadith 500
Narrated Anas Ibn Malik: Whenever the Prophet 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.
Hadith 6192
Narrated Abu Huraira: Zainab's original name was "Barrah," but it was said' "By that she is giving herself the prestige of piety." So the Prophet changed her name to Zainab.