It was narrated from Sulaiman bin Yasar, who narrated from Al-Fadl bin 'Abbas, who said: "A man came to the Prophet [SAW] and said: 'O Prophet of Allah, my father is an old man and cannot perform Hajj. If I put him on a mount he cannot sit firm. Can I perform Hajj on his behalf?' He said: 'Perform Hajj on behalf of your father.'"