Ruling if one kept some pebbles used for throwing the pebbles

Q 1: One person forgetfully kept some pebbles from Mina. In fact, he was told that the one who takes pebbles from Mina has to return them back to Makkah. Should he return them to Makkah or throw them anywhere, bearing in mind that Makkah is 400 kilometers away? Please, give us a detailed answer.

A: Whoever keeps some pebbles used for throwing the pebbles (at the pebble-throwing area during Hajj) does not have to return them back to Mina as this is no evidence on that. (Part No. 10; Page No. 295) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.