Anas said that God's messenger used to breathe three times in the course of a drink. (Bukhari and Muslim.) In a version Muslim added that he used to say, "It is more thirst-quenching, healthier and more wholesome."

عَنْ أَنَسٍ قَالَ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَتَنَفَّسُ فِي الشَّرَابِ ثَلَاثًا. مُتَّفق عَلَيْهِ. وزادَ مسلمُ فِي روايةٍ ويقولُ: «إِنَّه أرْوَى وأبرَأُ وأمرأ»