Abu al-Muthanna, may Allah have mercy on him, says that once I was with Marwan when Hazrat Abu Sa'id Khudri, may Allah be pleased with him, also came. Marwan asked him, "Have you heard the Prophet, peace and blessings be upon him, forbidding breathing into drinks?" He replied, "Yes!" A man said, "I cannot quench my thirst in one breath, what should I do?" He replied, "Separate the vessel from your mouth and then breathe." He said, "If I see a straw or something in it, should I not blow into it even then?" He replied, "Pour it out."