Permissibility of selling an item after receiving it

Q 3: Two people came to me; one of them wanted to buy a car for cash and sell it to the other on credit. They both chose the car together and I doubt that they agreed on the price on credit before purchasing it from the agency. Is it permissible for me to sell it to them?

A: It is permissible for you to sell it after you have taken possession of it. Doubting that it will be sold on credit has no effect on the transaction.