An-Nisa 4:11 يوصيكم الله في اولادكم للذكر مثل حظ الانثيين فان كن نساء فوق اثنتين فلهن ثلثا ما ترك وان كانت واحدة فلها النصف ولابويه لكل واحد منهما السدس مما ترك ان كان له ولد فان لم يكن له ولد وورثه ابواه فلامه الثلث فان كان له اخوة فلامه السدس من بعد وصية يوصي بها او دين اباوكم وابناوكم لا تدرون ايهم اقرب لكم نفعا فريضة من الله ان الله كان عليما حكيما ١١

Allah directs you concerning your children: for a male there is a share equal to that of two females. But, if they are (only) women, more than two, then they get two-thirds of what one leaves behind. If she is one, she gets one-half. As for his parents, for each of them, there is one-sixth of what he leaves in case he has a child. But, if he has no child and his parents have inherited him, then his mother gets one-third. If he has some brothers (or sisters), his mother gets one-sixth, all after (settling) the will he might have made, or a debt. You do not know who, out of your fathers and your sons, is closer to you in benefiting (you). All this is determined by Allah. Surely, Allah is All-Knowing, All-Wise.