From Thumamah, from Anas that: "The Prophet (ﷺ) would breathe three times in the vessel."

Another chain from Anas bin Malik: "The Prophet (ﷺ) would breathe three times in the vessel."

He said: This Hadith is Hasan Sahih.
Jami` at-Tirmidhi Book 26, Hadith 25