An option in a sale contract concluded at the time of signing the agreement, giving one of the two parties to the contract a right to cancel the sale within a stipulated time.
Ma al-bahr
Ikhtikar
Khiyar al-`ayb
Irq al-zalim
Ilm tadbir al-manzil
Shuf`ah
Riba al-fadl
Irdabb
Iqta al-tamlik
Riba al-nasi'ah