Lady Aisha (may Allah be pleased with her) narrates that the Noble Prophet (peace and blessings be upon him) raced with me, and I outran him. Then some time passed, until I became heavier, and the Prophet (peace and blessings be upon him) raced with me again, and this time he outran me. Then the Prophet (peace and blessings be upon him) said: "This is in return for that."