Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: The Noble Prophet (peace and blessings be upon him) said: "The example of me and the Prophets before me is like that of a person who builds a building, makes it beautiful, complete, and excellent, but leaves the place of one brick. People walk around that building and say: 'We have not seen a building more splendid than this, but this one brick's place has remained empty.'" (The Noble Prophet, peace and blessings be upon him, said:) "I am that brick."