4:12
And for you (is) half (of) what (is) left by your wives if not is for them a child. But if is for them a child, then for you (is) the fourth of what they left, from after any will they have made [for which] or any debt. And for them (is) the fourth of what you left, if not is for you a child. But if is for you a child, then for them (is) the eighth of what you left from after any will you have made [for which] or any debt. And if [is] a man (whose wealth) is to be inheri (has) no parent or child or a women and for him (is) a brother or a sister, then for each one of (the) two (is) the sixth. But if they are more than that, then they (are) partners in the third, from after any will was made [for which] or any debt without (being) harmful. An ordinance from Allah. And Allah (is) All-Knowing, All-Forbearing.