al-Hakam bin Aban الحكم بن أبان العدني · Chapters on Hajj Rituals

“A Bedouin came to the Prophet (ﷺ) and said: ‘I have enlisted for such and such a military campaign and my wife is going for Hajj.’ He said: ‘Go back with her.’”

“O Messenger of Allah, my father is an old man who has become weak, and now the command of Allah has come for His slaves to perform Hajj, but he cannot do it. Will it discharge his duty if I perform it on his behalf?” The Messenger of Allah (ﷺ) said: “Yes.”