A man threw the large pillar and two pebbles fell outside the basin, so what should he do, and the next day has already entered?

The questioner:
May Allah reward you. This questioner says: A man threw the large pillar on the Day of Sacrifice when throwing the large pillar.

The Shaykh:
Mm.

The questioner:
He threw it on the Day of Sacrifice.

The Shaykh:
If you could get closer to the microphone so the voice is clear. Yes.

The questioner:
A man threw the large pillar on the Day of Sacrifice when throwing the large pillar.

The Shaykh:
How did he throw it when throwing the pillar? Or rather, he threw the large pillar, I mean.

The questioner:
He threw the large pillar.

The Shaykh:
Yes.

The questioner:
So five pebbles fell in the basin and the other one fell outside the basin. He did not take pebbles to complete the throwing, and he thought there was no harm in his action and that it was valid. So he asked some of his companions on the second day of staying in Mina, and they said, "Ask about that." What is required of him?

The Shaykh:
His throwing is not complete; he must throw seven pebbles, he must throw seven pebbles. If a long time has not passed, he goes back and completes the seven pebbles. If a long time has passed, he throws them on the second day in place of the first day, before throwing the pebbles of the current day. He throws for the past day before throwing for the current day for the sake of order. As for if the time for throwing has passed and the days of Tashriq have ended, if he left three pebbles or more, then a fidyah (ransom payment) is required of him. But if he left one or two, for each pebble he feeds a poor person.