An-Nisa 4:12 ۞ ولكم نصف ما ترك ازواجكم ان لم يكن لهن ولد فان كان لهن ولد فلكم الربع مما تركن من بعد وصية يوصين بها او دين ولهن الربع مما تركتم ان لم يكن لكم ولد فان كان لكم ولد فلهن الثمن مما تركتم من بعد وصية توصون بها او دين وان كان رجل يورث كلالة او امراة وله اخ او اخت فلكل واحد منهما السدس فان كانوا اكثر من ذالك فهم شركاء في الثلث من بعد وصية يوصى بها او دين غير مضار وصية من الله والله عليم حليم ١٢

For you there is one-half of what your wives leave behind, in case they have no child. But, if they have a child, you get one-fourth of what they leave, after (settling) the will they might have made, or a debt. For them (the wives) there is one-fourth of what you leave behind, in case you have no child. But, if you have a child, they get one eighth of what you leave, after (settling) the will you might have made, or a debt. And if a man or a woman is Kalālah (i.e. has neither parents alive, nor children) and has a brother or a sister, then each one of them will get one-sixth. However, if they are more than that, they will be sharers in one-third, after (settling) the will that might have been made, or a debt, provided that the will must not be intended to harm anyone. This is a direction from Allah. Allah is All-Knowing, Forbearing.