Supplication and Talbiyah for the One Performing Hajj on Behalf of Another

Question:
The question is: If a person performs Hajj on behalf of someone else, does he make supplication for himself? Does he make supplication for the one he is representing when standing at 'Arafah, when praying, and after the imam finishes? Or does he only recite the talbiyah when staying in Mina?

Answer:
The one who acts as a proxy performs the rituals for the one he represents. As for supplication, seeking forgiveness, and the talbiyah, their reward belongs to the pilgrim himself. Praying in the Sacred Mosque and in the sacred sites, their virtue returns to the pilgrim himself, the proxy. The one for whom the proxy acts gets only the rituals, which are tawaf, sa'y, standing at 'Arafah, staying overnight at Muzdalifah, staying overnight at Mina, stoning the pillars, and shaving or shortening the hair. These are done on behalf of the one represented. As for the dhikr, supplications, and prayers, they are for the proxy himself, the one performing the act. Yes.