My brothers stoned the pillars on my behalf because they feared for me from the crowd; is my Hajj valid?

Question:
She says: I performed the obligatory Hajj three years ago, praise be to Allah, accompanied by some relatives. On the twelfth day of Dhul-Hijjah, we wanted to stone the pillars and leave early. At about two in the afternoon, we went to stone the pillars. On the way, we met some people who told us that there was a severe crowd around the pillars. So my brothers and relatives changed their minds and said, "Let us wait until tomorrow," meaning the thirteenth day; that is, they did not want to leave early. At that point, I went to the mosque to perform the 'Asr prayer. After the prayer, I sat in the mosque because my brothers and relatives said, "We want to wait until tomorrow, the thirteenth day." However, after 'Asr, they returned to the pillars, found an opportunity, and stoned the pillars. They stoned them on my behalf because they looked for me and did not know that I was in the mosque. They said, "We were afraid for you from the crowd, and besides, we did not find you in the tent." I was eighteen years old at the time. What is the ruling on my Hajj? May Allah reward you with good.

Answer:
Your Hajj is valid, praise be to Allah, but you owe a fidyah (ransom payment) for leaving the stoning of the pillars on that day; because their acting on your behalf without your permission and without an excuse is not valid. If you explain that you did not stone the pillars on that day, then you owe a fidyah, which is slaughtering a sheep in Makkah to be distributed to the poor of the Haram. If you go and slaughter it yourself, praise be to Allah. If you appoint someone to slaughter it and distribute it to the poor of the Haram, that is sufficient. If you are not financially able, meaning you do not have money to slaughter, then you fast for ten days. Yes.