Allah sets clear rules for inheritance: for wives without children, husbands get half, and for wives with children, husbands receive a fourth. For husbands without children, wives get a fourth, and for wives with children, they receive an eighth. If there are siblings but no parents or children, each sibling gets a sixth, or a third if there are more than two. Obeying these laws leads to paradise, while disobedience leads to fire and disgraceful torment.