The ruling on the seller’s condition: “The goods cannot be returned or exchanged”

Question:
Many stores include a condition written on the invoice: “The goods cannot be returned or exchanged”?

Answer:
This is not valid. The goods are to be returned or exchanged if there is a reason for it. If there is deception, they are to be returned and not exchanged. This is a lie.
Q: But if the buyer accepts it, is he bound by it?
The Shaykh: If he accepts it and finds a defect, he has the right to return it... If he finds a defect that they deceived him with, he has the right to return it. But if there is no defect, he is bound by it. If you came to the car and said, “By Allah, I do not know of any defect in it,” and he bought it... the sale is binding. But if it is established that he deceived him, he has the option.
Q: Is this condition invalid?
The Shaykh: It is not invalid, but it does not prevent returning it if a defect is found that the seller knew about and concealed, thereby deceiving him. But if he said, “I do not know of any defect in it,” and he bought it... the sale is binding on him.