آداب الأكل والشرب
Abu Sa‘īd al-Khudri (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) prohibited blowing in one's drink. A man said: “Sometimes, I see a speck in the vessel. What should I do then?” He replied: “Spill it.” Then the man said: “My thirst is not quenched with one draught.” He said: “Then remove the cup from your mouth (in between three gulps, and take a breath).”
عن أبي سعيد الخدري -رضي الله عنه- أن النبي -صلى الله عليه وسلم- نهى عنِ النَّفْخ في الشّراب، فقال رجل: القَذَاة أَرَاهَا في الإناء؟ فقال: «أَهْرِقْهَا». قال: إِنِّي لا أَرْوى من نَفَس واحد؟ قال: «فَأَبِنِ القدح إذًا عن فِيك».
شرح الحديث :
The Prophet (may Allah's peace and blessings be upon him) prohibited blowing in one's drink. A man asked him: “O Messenger of Allah, there might be a speck in it, so one blows in it to remove it.” The Prophet (may Allah's peace and blessings be upon him) said: “Spill the water that has the speck in it, and do not blow in it.” Then the man asked him: “My thirst is not quenched with one breath.” So the Prophet (may Allah's peace and blessings be upon him) ordered him to remove the cup from his mouth, take a breath, and then drink again.