الإسلام عهد عاصم للملك
Islam is treated as a covenant that protects ownership and certain rights.
A classical argument considers the effect of one spouse's conversion to Islam upon a marriage involving different religious affiliations. One inference makes the difference in affiliation a ground for the loss of the contract; the counterargument asks whether making the act of embracing Islam destroy a protected right is consistent with the proposed cause.
The point of the objection is suitability of the cause. Detailed rules governing particular marriages require their own evidence and conditions; this example alone does not decide every possible marital case.