Sayyiduna Abdullah (may Allah be pleased with him) narrates: It was asked from the Prophet (peace and blessings of Allah be upon him) about a person who sleeps until he reaches the morning. The Prophet (peace and blessings of Allah be upon him) said: "Satan has urinated in his ear." (The narrator is in doubt, perhaps these are the words) "in both his ears?" The narrator named Sufyan says: In our view, what is meant by this is the person who remains asleep at the time of the obligatory prayer.