Hanad bin al-Sari bin Mus'ab هناد بن السري بن مصعب · The Book of Purification

"The Messenger of Allah (ﷺ) said: 'When any one of you enters Al-Khala' (the toilet), let him not touch his penis with his right hand.'"

"The Messenger of Allah (ﷺ) came out to us with a small leather shield in his hand. He put it down, then he sat behind it and urinated toward it. Some of the people said: 'Look, he is urinating like a woman.' He heard that and said: 'Do you not know what happened to the companion of the Children of Israel? If they got any urine on themselves they would clip that part of their garments off. Their companion told…

"The Messenger of Allah (ﷺ) passed by two graves and said: 'These two are being punished, but they are not being punished for something that was difficult to avoid. As for this, he used not to take precautions to avoid (his body to clothes being soiled by) urine, and this one used to walk around spreading malicious gossip.' Then he called for a fresh palm-leaf stalk and split it in two, and placed one piece on each of the two…

"The Messenger of Allah (ﷺ) was asked about water and how some animals and carnivorous beasts might drink from it. He said: 'If the water is more than two Qullahs, it will not carry filth.'" It comes with some explanation in Sunan At Timidhi 'Abdah (one of the narrators) said: "Muhammad bin Ishaq said: 'A Qullah refers to Jirar (These are two nouns describing large casks that are used to hold water), and a Qullah is the thing that drinking…

"I saw the Messenger of Allah (ﷺ) wiping over the Khimar and Khuff."

"I asked 'Aishah about wiping over the Khuffs and she said: 'Go to 'Ali, for he knows more about that than I do.' So I went to 'Ali and asked him about wiping (over the Khuffs) and he said: 'The Messenger of Allah (ﷺ) used to tell us to wipe (over the Khuffs) for one day and one night for the resident, and three for the traveler.'"

"I was a man who had a lot of prostatic discharge, and the daughter of the Prophet (ﷺ) was married to me, so I felt shy to ask him (about that). I said to a man who was sitting beside me: 'Ask him,' so he asked him and he said: 'Perform Wudu' for that.'"

"We went out as a delegation and when we arrived with the Messenger of Allah (ﷺ) he accepted our oath of allegiance and we prayed with him. When he had finished the prayer, a man who looked like a Bedouin came to him and said: 'O Messenger of Allah, what do you think about a man who touched his penis during the Salah?' He said: 'It is just a part of you,' or 'a piece of you.'"