What is the ruling on selling an item for ten times its price?

The questioner : Shaykh, may Allah preserve you, a person sells his goods for approximately ten or fifteen times their value. What is the ruling, O Shaykh?

The Shaykh : If a person makes a profit of two, three, ten, or a thousand times on an item, but does not exceed the market price, there is nothing wrong with it. However, here we observe why he bought it for such a low price. Is it because the seller who sold it to him was a naive person who did not know the prices? If so, he must inform him. Or did the prices surge and increase rapidly? If so, he owes nothing. Yes, it is permissible.