The ruling on buying a commodity from the market and selling it in the same market

Question:
May Allah reward you. Among the questions we received, this questioner says: Shaykh Salih, if commodities are displayed in a public market where anyone who wishes to sell a commodity may do so, then if I buy a commodity and want to sell it, am I required to move it, or is it permissible for me to sell it in its place on the basis that the market is public for everyone?

Answer:
This varies depending on the commodities, and taking possession varies depending on the commodities. What is taken by hand is taken by grasping it; what is measured or weighed is taken by measuring or weighing it; and what is transported is taken by transporting it, such as food. Thus, taking possession differs in these cases. Yes.