Abu Mathna Johani reports: I was present with Marwan bin Hakam. Sayyiduna Abu Saeed Khudri (may Allah be pleased with him) came to him. Marwan asked him: Did you hear the Prophet (peace and blessings be upon him) forbidding blowing into a vessel? Sayyiduna Abu Saeed Khudri (may Allah be pleased with him) replied: Yes, a man said to the Prophet (peace and blessings be upon him): O Messenger of Allah, I do not become satiated with one breath. The Prophet (peace and blessings be upon him) said: Move the cup away from yourself, then breathe. He said: I find something dirty in it (so what should I do)? The Prophet (peace and blessings be upon him) said: Then pour it out.