Definition of the sale involving gharar (excessive uncertainty in a contract)

Question:
This is Ya'qub. He says: I am reading in some books of Islamic jurisprudence, and I came across this issue regarding the ruling on the sale involving gharar (excessive uncertainty in a contract), and what is its description?

Answer:
The sale involving gharar (excessive uncertainty in a contract) means deceiving the customer by not disclosing the defects of the goods, or by telling him, "I bought it for such-and-such," when he is lying. He wants to raise the price for him and sell it for the amount he claims to have paid for it. This is a type of gharar (excessive uncertainty in a contract) that justifies the rescission of the contract for the one who is subjected to it. Yes.