Borrowing from a shop, and upon repayment finding that the shop has been sold: to whom should the amount be given?

Question:
May Allah reward you with good. More than two years ago, I bought some items from a shop and paid him part of the price, as I did not have the full amount at the time, and I said I would return the rest of the price to you, but I forgot. After a while, I remembered and went to that shop to pay him what remained, but the owner of the shop had left, even though another person has come. Should I give that amount to this new person? Or is it necessary to give it to the first person? May Allah reward you with good.

Answer:
It is necessary to give it to the first person. As for the new person, he has no right to claim it from you. However, you must ask where the first person went? Where is his place? Ask those who know him, such as his neighbors and the owners of the adjacent shops. Indeed, the owner of the shop that took his place is more likely to have information about this person and where he went.
So you must ask and search for this person and deliver his right to him. And if you trust someone who knows him and can deliver his right to him, there is no harm in paying that amount to this intermediary who will deliver his right to him. Yes.