Wadiah

Safekeeping or custody. A deposit arrangement where a financial institution holds funds as a custodian. There are two types: (1) Wadiah Yad Amanah — pure safekeeping where the custodian cannot use the funds and is not liable for loss except through negligence; (2) Wadiah Yad Dhamanah — safekeeping with guarantee, where the custodian may use the funds (with permission) but guarantees the return of the full deposit amount.

The latter is used as the basis for some Islamic checking and savings accounts. The bank may offer a voluntary gift (hibah) to depositors but is not obligated to do so.

Wadiah is safekeeping — you deposit property with a custodian who commits to guard and return it. Classical fiqh treats the custodian as a trustee (amin): liable for the item only through negligence or unauthorized use, entitled to a safekeeping fee if agreed, and forbidden from using the deposit without permission.

Islamic banking, led by Malaysian practice, adapted this into wadiah yad dhamanah ('safekeeping with guarantee'): you permit the bank to use your deposits, and in exchange the bank guarantees the balance in full — which converts its legal position from trustee to guarantor and, in substance, makes the arrangement parallel to qard (loan to the bank). Because guaranteed deposits cannot earn contractual returns without riba, wadiah accounts pay nothing by right; banks may grant discretionary hibah (gifts), never promised or advertised as a rate — a boundary AAOIFI-aligned boards police because a customary, benchmarked 'gift' functions as interest.

Where Americans encounter the concept: Islamic checking/current accounts (guaranteed, non-earning) follow wadiah/qard logic and coexist cleanly with FDIC insurance — deposit protection is a guarantee of the custodian's obligation, not a return on money, so scholars accept insured halal accounts; several U.S. halal banking fintechs structure their non-interest accounts exactly this way. The practical account-opening question wadiah teaches: is my balance guaranteed-but-unremunerated (wadiah/qard) or at-risk-but-profit-sharing (Mudarabah)? Every honest Islamic bank account is one or the other.