Selling what was purchased without moving it from the place of purchase

Question:
I bought ten cars from a showroom and left them there. I did not move any of them, I paid for them, and I never transferred them to my name. Whenever I got a customer, I sold them the car while it was still in its place. I did not move any of them; I only paid the amount. How is this sale and this purchase?

Answer:
You should move them from the place of sale to another place, to another showroom. The Prophet (peace and blessings be upon him) forbade selling goods where they were bought until the merchants take them to their dwellings.
So you should not sell them while they are in the showroom where you bought them. Rather, move them to another showroom, or to your house, or to another market of the Muslims. Do not sell them while they are in their place, in accordance with the saying of the Prophet (peace and blessings be upon him) and in accordance with his guidance (peace and blessings be upon him) regarding not selling goods in their place.

Question: But I have stipulated with him that they remain until they are removed from this place?

Answer: They remain until you move them to another showroom.