When a WILL or bequest has observed all the rules and rights, it is held honourable and valid, and it is unlawful for a Muslim to make any change in it: ``Whoever changes the bequest after hearing it, the guilt shall be on those who make the change.'' Here it signifies that if the executor of the will does something wrong or changes any part of the bequest, it has nothing to do with the testator, as far as his will be just to his heirs, and has not departed from what is considered equitable; and the sin rests upon those who have changed it.