The father stoning all the pillars on behalf of his daughter

The questioner:
A sister questioner sent you this question as well. She says: I performed Hajj with my father when I was seventeen years old, and it was the obligatory Hajj. I was ignorant and knew nothing about Hajj, and I used to follow my father in all my affairs. My father went with me to throw the pebbles at the pillars, so he took the pebbles and threw them all on my behalf. Is my Hajj valid?

The Shaykh:
By throwing them all, you mean he threw all the pebbles at once. This counts as one throw. If he threw them all at once, it suffices for one throw, leaving six pebbles. However, if he threw them all, meaning he threw for himself and then threw for you, there is no harm in that. Yes.

The questioner:
And if they have returned now, O Shaykh, and they have done it, and he stoned all these pebbles?

The Shaykh:
If he throws the pebbles all at once, it suffices for only one, and he owes a fidyah (ransom payment). He owes a fidyah as compensation for what he left of the stoning of the pillars. Yes.