Hadithcore
Riyad as-Salihin, 756

Anas (May Allah be pleased with him) reported:

The Messenger of Allah (ﷺ) used to breathe three times in the course of a drink (he used to drink in three gulps). <b>[Al-Bukhari and Muslim]</b>.

عن أنس رضى الله عنه أن رسول الله صلى الله عليه وسلم كان يتنفس في الشراب ثلاثاً‏.‏((متفق عليه))

References1 variant
In-Book Reference
Book 2, Hadith 30
Sharh · explanationclick to expand
<b>Guidance from the Hadiths:</b><br> 1) The Sunnah in drinking is that one drinks three times from the vessel, for the Prophet (may Allah’s peace and blessings be upon him) said: “It is more wholesome, thirst-quenching, and healthier.” [Narrated by Abu Dāwūd]<br> 2) The Shariah calls for maintaining physical health. If water is drunk all at once, it may cause some harm. Yet, if it is drunk some at a time, this is better in quenching one’s thirst and further from causing harm.