Chapter on Suretyship
(1)
Suretyship (ḍamān) is valid when a legally competent person declares, “I am a guarantor,” “I stand surety for what he owes,” or similar wording. The creditor may pursue whichever of the two he chooses. The guarantor is discharged once the principal debtor is discharged, but not the reverse. Neither prior knowledge of the creditor or debtor is required—only the guarantor’s consent.
A guaranty of an unknown liability is valid if it will ultimately become known, and of an obligation not yet due if it is expected to arise. One may guarantee a borrowed article (ʿāriyah), but not a trust deposit—except for loss resulting from misconduct with respect to it.
It is likewise valid to guarantee the person (kafālah) of someone who owes a financial obligation, though not one subject to a ḥadd (prescribed punishment) or the like; only the guarantor’s consent is necessary. If it becomes impossible to produce the person guaranteed (2) while he is still alive, the guarantor must satisfy the debt. If he guaranteed only knowledge of the debtor’s whereabouts, he is held to that. Should the debtor die, surrender himself, or the property perish by an act of God, the guarantor is released.
Chapter on Transfer of Debt (ḥawālah)
(3)
A transfer of debt is valid only for a fixed obligation equal to the one being transferred
(4)
in amount, kind, and description.