"When any one of you drinks, let him not breathe into the vessel, and when he goes to the toilet let him not touch his penis with his right hand, nor wipe himself with this right hand."
Sunan an-Nasa'i Book 1, Hadith 47
← Previous Hadith "Tell your husbands to clean themselves with water, for I am too shy to tell them myself. The Messenger of Allah (ﷺ) used to do that."

Sunan an-Nasa'i Book 1, Hadith 46 Next Hadith → It was narrated from Ibn Abi Qatadah, from his father, that the Prophet (ﷺ) forbade breathing into the vessel (when drinking), touching one's penis with one's right hand, and cleaning oneself with one's right hand.

Sunan an-Nasa'i Book 1, Hadith 48