The ruling on selling for the shop owner at the wholesale price in exchange for the difference

The questioner:
The owner of a shop appointed me to sell and display the goods in his shop. I am the owner of a shop, and I complete the sales there, displaying the goods in his shop on the condition that I sell at his approximate price and give him the wholesale price.

The Shaykh:
No. What is the matter? No. There is no god but Allah.

The questioner:
And this, O Shaykh, I tell you by Allah, the owner of a shop appointed me to sell and display the goods in his shop on the condition that I sell at an approximate price and give him the wholesale price. Is that valid?

The Shaykh:
According to what you agree upon. If you agree on something, it is up to you. If you appoint him to sell what is in his shop, you pay him the wholesale price and you take what exceeds the wholesale price from the retail sale as compensation for your effort, then there is nothing wrong with that. There is nothing wrong with that. Yes. However, it can be said that this is a fee that is unknown, because it is not known what the difference is between the wholesale price and the retail price. So it is better to specify the effort: you sell for him for a fee and give him the price of his goods, and you take the customary fee that brokers take in the market. This is the most cautious and the farthest from dispute. Yes.