What is the ruling on purchasing a commodity from an investment fund that contracts with an institution to provide it and sell it to the buyer at a higher price in installments and with a fixed interest? And is it necessary for a representative from the fund to be present to take possession of the commodity?

There is no impediment to carrying out the aforementioned transaction if the sale between the institution and the owner of the commodity takes place before it is sold to the customer. An increase in price in exchange for time is permissible. It is stipulated that you do not take possession of the commodity yourself before it enters the possession of the institution, based on the Prophet's (peace be upon him) saying: "It is not lawful to combine a loan and a sale, nor two conditions in one sale, nor profit from what has not been guaranteed, nor to sell what you do not possess." And based on the saying of Ibn Umar (may Allah be pleased with them both): "Indeed, the Messenger of Allah (peace be upon him) forbade selling commodities where they were purchased until merchants take possession of them and transport them to their places." If a representative of the company accompanies you to deliver the commodity, the transaction is valid if the remaining conditions are met.