Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) said: "Once I was asleep and I saw that people were being presented before me, and they were wearing shirts; some shirts reached up to the chest, and some were a little below that. Then Umar was presented before me, and his shirt was dragging on the ground." The people around the Noble Prophet (peace and blessings be upon him) asked: "O Messenger of Allah! How did you interpret this?" The Noble Prophet (peace and blessings be upon him) said: "Religion."