Sayyiduna Umar bin Khattab (may Allah be pleased with him) ordered the stoning of a mad woman. Sayyiduna Ali (may Allah be pleased with him) said: You do not have the authority to do so, because I heard the Messenger of Allah (peace and blessings be upon him) say: The pen has been lifted from three persons: from the sleeping person until he wakes up, from the child until he reaches puberty, and from the mad person until he recovers. Upon hearing this, Sayyiduna Umar (may Allah be pleased with him) removed the punishment from her.