An undertaking (binding promise– wa’ad mulzim) by either the issuer of sukuk or the manager of sukuk-financed project/assets to repurchase the assets at the stated price (face value) at which sukuk were initially purchased by sukuk holders, regardless of their true or or market value at maturity.

Guaranteeing the repayment of principal to sukuk holders is one of the shari’ah issues rendering most of the sukuk issued today a replica of conventional bonds. Virtually, all existing sukuk (or most sukuk issues) guarantee the return of principal (investors capital) at maturity. From a shari’ah perspective, sukuk holders are only entitled to receive the true value of the sukuk assets, regardless of whether that value is more or less than the face value.