Praise be to Allaah.
If the situation is as described, that your father is healthy
and cannot do Hajj because he is financially unable, then he is not obliged
to do Hajj, because Allaah says (interpretation of the meaning): “And
Hajj (pilgrimage to Makkah) to the House (Ka‘bah) is a duty that mankind
owes to Allaah, those who can afford the expenses (for one’s conveyance,
provision and residence)” [Aal ‘Imraan 3:97]. So it is not valid for you
or anyone else to do Hajj on his behalf. But if you can afford to pay for
his Hajj, it is prescribed for you to help him so that he can do Hajj for
himself.
And Allaah is the Source of strength. May Allaah send
blessings and peace upon our Prophet Muhammad and his family and companions.
End quote.
Standing Committee for Academic Research and Issuing Fatwas
Shaykh ‘Abd al-‘Azeez ibn ‘Abd-Allaah ibn Baaz, Shaykh ‘Abd
al-Razzaaq ‘Afeefi, Shaykh ‘Abd-Allaah ibn Ghadyaan, Shaykh ‘Abd-Allaah ibn
Qa’ood.
Fataawa al-Lajnah al-Daa’imah li’l-Buhooth al-‘Ilmiyyah wa’l-Ifta (11/31, 32).