Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) visited his mother's grave. He (peace be upon him) wept, and those around him also made others weep. Then he (peace be upon him) said: I sought permission from my Lord to visit her grave, and He granted me permission. I asked Him for permission to seek forgiveness for her, but He did not grant me permission. You people should visit graves, for they remind you of death.