Circumstances in Which One can cancel a Transaction

2132. The right to cancel a transaction is called Khiyar. The seller and the buyer can cancel a transaction in the following twelve cases:

First: If the parties to the transaction have not parted from each other and this right is called Khiyar of Majlis.

Second: If the buyer or the seller has been cheated in a sale transaction, they have a right to call off the deal and this is called Khiyar of Ghabn.