Anas (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) used to breathe three times in the course of a drink (he used to drink in three gulps).[Al-Bukhari and Muslim]. (ID)
App reference (ID): Book 3, Hadith 30 (ID)
Arabic/English book reference (ID): Book 3, Hadith 757 (ID)