The ruling on the condition to purchase the goods after their arrival

Question:
May Allah reward you with good and do you well. This is a message from Yemen, and its sender is a listener who says: Honorable Shaykh, one day I traveled with some friends to a foreign country for the purpose of trade. My friend had the money but did not have the experience in purchasing goods, so he insisted on me and said, “I will give the money, and I will purchase the goods for him, and he will bear the cost of transporting the goods from that country to Yemen. He will also bear all losses that befall the goods, such as fees and the like, until they reach Yemen and the commercial shop, to be precise. We had agreed that I would purchase them from him, at the agreed price, after the goods arrived at the shop. Please advise us, may Allah reward you with good, and did we fall into the suspicion of riba (usury or interest) or not? May Allah grant you success.

Answer:
This condition is not binding on you to purchase them if they arrive in the country; this does not obligate you. What you are doing in helping him purchase the goods, because you are better at assessing them than he is, if you volunteer to do this and help him with it for free, then may Allah reward you with good, and it is a kindness to you. If you stipulated a fee in exchange for your work, that is also a permissible action. As for stipulating that you must purchase them if they arrive, this is not a binding condition. Yes.