Sahih al-Bukhari Book 74, Hadith 56

Allah's Messenger (ﷺ) said, "When you drink (water), do not breath in the vessel; and when you urinate, do not touch your penis with your right hand. And when you cleanse yourself after defecation, do not use your right hand."

Previous Hadith

The Prophet (ﷺ) forbade the drinking of water direct from the mouth of a water-skin.

Sahih al-Bukhari Book 74, Hadith 55
Next Hadith

Anas used to breathe twice or thrice in the vessel (while drinking) and used to say that the Prophet; used to take three breaths while drinking.

Sahih al-Bukhari Book 74, Hadith 57