The ruling on selling an item at a price higher than the set price

Question:
A private individual, a colleague of his, sells a pager. He says: If it goes over nine hundred and fifty, the excess amount is yours. This person said his colleague set the device at one thousand and three hundred riyals, but he did not set it; it was just his own estimate that he set the amount at one thousand and three hundred riyals. Is it permissible to sell it? He said he set it at one thousand and three hundred.

Answer:
He says: If you receive it from the sale and it is profitable for you, no, there is no problem. Greed. And taking from it, there is no harm. Seeking blessing, there is no harm. That is, if he lied and said he set it when he did not set it, and said if it goes over nine hundred and fifty riyals, then the excess is for those. It has one meaning, or rather, the meaning is that if one thousand riyals is obtained for this item, he should be lenient with one, even if he conditions it, but he must not deceive people. Also, if the item has a known price among people, he should not deceive; he sells as people sell. But if it is an item that has no history, no known price, and he increases the price, the excess does not deceive. May Allah reward you. But it is not permissible to deceive people with the price, to mislead people, or to sell in a way that deceives; that is not permissible.