Sahih Bukhari 153

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..

Narrated Ibn `Abbas: The Prophet performed ablution by washing the body parts only once. ..

Narrated `Abdullah bin Zaid: The Prophet performed ablution by washing the body parts twice. ..

Narrated Humran: (the slave of 'Uthman) I saw 'Uthman bin 'Affan asking for a tumbler of water (and when it was brought) he poured water over his hands and washed them thrice and then put his right hand in the water container and rinsed his mouth,..