Chapter on Inheritance Among Followers of Different Religions
A Muslim does not inherit from a disbeliever except by walāʾ (clientage), nor does a disbeliever inherit from a Muslim except by walāʾ.
A belligerent non-Muslim (ḥarbī), a protected non-Muslim resident (dhimmī), or a non-Muslim under temporary safe-conduct (mustaʾman) may inherit from one another. Members of the dhimma may also inherit from each other when they follow the same religion, but not when their religions differ, for they represent diverse creeds.
An apostate inherits from no one, and if he dies while persisting in his apostasy, his estate reverts to the public treasury (fayʾ).
A Magian⦗1⦘ may inherit on the basis of two separate kinships if he later embraces Islam or brings his case before an Islamic court prior to converting; the same ruling applies to a Muslim who, under a mistaken assumption of permissibility, has intercourse with a woman related to him within the prohibited degrees of kinship.
No inheritance arises from a marriage to a woman who is maḥram, nor from any contract that would not be upheld were its parties to accept Islam.