Sahih Bukhari 150

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. ..

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). ..

Narrated Abu Qatada: Allah's Apostle said, Whenever anyone of you drinks water, he should not breathe in the drinking utensil, and whenever anyone of you goes to a lavatory, he should neither touch his penis nor clean his private parts with his..

Narrated Abu Qatada: The Prophet said, Whenever anyone of you makes water he should not hold his penis or clean his private parts with his right hand. (And while drinking) one should not breathe in the drinking utensil . ..

Narrated Abu Huraira: I followed the Prophet while he was going out to answer the call of nature. He used not to look this way or that. So, when I approached near him he said to me, Fetch for me some stones for ' cleaning the privates parts (or..

Narrated `Abdullah: The Prophet went out to answer the call of nature and asked me to bring three stones. I found two stones and searched for the third but could not find it. So took a dried piece of dung and brought it to him. He took the two..