Abu Sa'id al-Khudri told that the Prophet forbade blowing into a drink. When a man said he saw specks in the vessel he told him to pour them out, and when he said his thirst was not quenched in one breath he told him to remove the cup from his mouth and take a breath.
He reported God’s messenger as saying, “Do not drink without stopping as a camel does,* but divide your drink into two or three sections; mention God’s name when you drink and praise Him when you finish.”
*This is to avoid blowing into the vessel.
