۞ وَلَكُمۡ نِصۡفُ مَا تَرَكَ أَزۡوَٰجُكُمۡ إِن لَّمۡ يَكُن لَّهُنَّ وَلَدٞۚ فَإِن كَانَ لَهُنَّ وَلَدٞ فَلَكُمُ ٱلرُّبُعُ مِمَّا تَرَكۡنَۚ مِنۢ بَعۡدِ وَصِيَّةٖ يُوصِينَ بِهَآ أَوۡ دَيۡنٖۚ وَلَهُنَّ ٱلرُّبُعُ مِمَّا تَرَكۡتُمۡ إِن لَّمۡ يَكُن لَّكُمۡ وَلَدٞۚ فَإِن كَانَ لَكُمۡ وَلَدٞ فَلَهُنَّ ٱلثُّمُنُ مِمَّا تَرَكۡتُمۚ مِّنۢ بَعۡدِ وَصِيَّةٖ تُوصُونَ بِهَآ أَوۡ دَيۡنٖۗ وَإِن كَانَ رَجُلٞ يُورَثُ كَلَٰلَةً أَوِ ٱمۡرَأَةٞ وَلَهُۥٓ أَخٌ أَوۡ أُخۡتٞ فَلِكُلِّ وَٰحِدٖ مِّنۡهُمَا ٱلسُّدُسُۚ فَإِن كَانُوٓاْ أَكۡثَرَ مِن ذَٰلِكَ فَهُمۡ شُرَكَآءُ فِي ٱلثُّلُثِۚ مِنۢ بَعۡدِ وَصِيَّةٖ يُوصَىٰ بِهَآ أَوۡ دَيۡنٍ غَيۡرَ مُضَآرّٖۚ وَصِيَّةٗ مِّنَ ٱللَّهِۗ وَٱللَّهُ عَلِيمٌ حَلِيمٞ

Wa lakum nisfu maa taraka azwaajukum il lam yakul lahunna walad; fa in kaana lahunna waladun falakumur rub'u mimmaa tarakna mim ba'di wasiyyatiny yooseena bihaaa aw dayn; wa lahunnar rubu'u mimmaa taraktum il lam yakul lakum walad; fa in kaana lakum waladun falahunnas sumunu mimmaa taraktum; mim ba'di wasiyyatin toosoona bihaaa aw dayn; wa in kaana rajuluny yoorasu kalaalatan awim ra atunw wa lahooo akhun aw ukhtun falikulli waahidim minhumas sudus; fa in kaanooo aksara min zaalika fahum shurakaaa'u fissulus; mim ba'di wasiyyatiny yoosaa bihaaa aw dainin ghaira mudaaarr; wasiyyatam minal laah; wallaahu 'Aleemun Haleem

In what your wives leave, your share is a half, if they leave no child; but if they leave a child, ye get a fourth; after payment of legacies and debts. In what ye leave, their share is a fourth, if ye leave no child; but if ye leave a child, they get an eighth; after payment of legacies and debts. If the man or woman whose inheritance is in question, has left neither ascendants nor descendants, but has left a brother or a sister, each one of the two gets a sixth; but if more than two, they share in a third; after payment of legacies and debts; so that no loss is caused (to any one). Thus is it ordained by Allah; and Allah is All-knowing, Most Forbearing.

— An-Nisa' (ٱلنِّسَاء), 4:12