Sayyiduna Abdullah bin Mas’ud (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings be upon him) say:“When the seller and the buyer (the one who sells and the one who buys) have a dispute and the sold item (i.e., the goods) is still present as it was, and there is no evidence (or witness) between them, then the statement of the (owner) seller will be considered valid, or both of them should leave (cancel) the transaction.”