They ask you for a decision of the law . Say : Allah gives you a decision concerning the person who has neither parents nor offspring ; if a man dies ( and ) he has no son and he has a sister , she shall have half of what he leaves , and he shall be her heir she has no son ; but if there be two ( sisters ) , they shall have two-thirds of what he leaves ; and if there are brethren , men and women , then the male shall have the like of the portion of two females ; Allah makes clear to you , lest you err ; and Allah knows all things .