Abu al-Muthanna said: I was with Marwan when Sayyiduna Abu Sa'id (may Allah be pleased with him) came and narrated that a man said: O Messenger of Allah! I do not become satisfied in one breath? The Prophet (peace be upon him) said: "Then remove the cup from your mouth and then take a breath." He asked: What if I see something dirty in it? He said: "Pour it out."