Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) said: "Allah Almighty will admit the people of Paradise into Paradise; He will admit whomever He wills by His mercy. And He will admit the people of Hell into Hell, then He will say: 'Take out from Hell the person who has even a mustard seed's weight of faith in his heart.' So those people will be taken out of Hell, and they will have become like charcoal. Then they will be thrown into the river of Paradise, and they will sprout forth from it just as a seed sprouts forth from the silt carried by a flood. Have you not seen it? It is yellow and bends this way and that."