The ruling on one who doubts whether the pebbles of the stoning reached the basin

Question:
I heard from your program that the stoning is sufficient if the pebble falls in the basin, but when I stone, I do not know whether it fell or not? — meaning in the basin — please guide us, may Allah reward you with good.

Answer:
It is obligatory for the pilgrim to aim for the stoning of the pillars in the basin, and not to aim for the standing stone. He should throw the pebbles in the basin. If it is most likely in his mind that they fell in the basin, or if he knows that, then that is sufficient. If he doubts that, then he must repeat the stoning within the time. If the time has passed, the days of Mina have gone, and he did not repeat it, then he owes a sacrificial animal, a slaughter to be performed in Mecca for the poor due to his leaving the stoning. As long as the time remains and the days of Mina have not passed, he must repeat the stoning until he is certain, or until it is most likely in his mind that they fell in the basin.

The presenter : May Allah reward you with good.