This document differentiates between two types of gifts under Islamic law: Hiba and Shartul-iwaz. Hiba is an unconditional gift where ownership is transferred without consideration or agreement for return. Shartul-iwaz is a conditional gift where there is an express agreement for the recipient to return a gift. Some key differences are that delivery of possession is essential for Shartul-iwaz but not for Hiba, and that Shartul-iwaz is irrevocable only after the performance of the promised condition while Hiba is generally revocable.