The ruling on stoning the pillars on behalf of another without agency

Question:
The questioner says: My mother performed Hajj in one of the years, and my brother stoned the pillars on her behalf on the second day without her appointing him as her agent. What is the ruling?

Answer:
If she did not appoint him as her agent, it does not suffice for her, because intention is necessary, as stoning the pillars is an act of worship, and intention is required. A person either stons the pillars himself or through his agent. The Messenger (peace and blessings be upon him) said: This is a general statement. So if he stoned the pillars on her behalf without her appointing him as her agent, this does not suffice, and she must offer a sacrifice in Makkah, which is to be distributed among the poor of the Haram. Yes.