It is narrated from Sayyiduna Fadl bin Abbas (may Allah be pleased with them both) that a woman from the tribe of Khath'am came to the Prophet (peace and blessings of Allah be upon him) and said: "O Messenger of Allah! The obligation of Hajj has become due upon my father from Allah, but he has become so old that he cannot even sit on a mount." The Prophet (peace and blessings of Allah be upon him) said: "Perform Hajj on his behalf."