Sahih al-Bukhari 6742
Sahih al-Bukhari · Book 85: Laws of Inheritance (Al-Faraa'id) · The sisters share the inheritance with the daughters
Narrated Huzail:
حَدَّثَنِي عَمْرُو بْنُ عَبَّاسٍ ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ ، حَدَّثَنَا سُفْيَانُ ، عَنْ أَبِي قَيْسٍ ، عَنْ هُزَيْلٍ ، قَالَ قَالَ عَبْدُ اللَّهِ لأَقْضِيَنَّ فِيهَا بِقَضَاءِ النَّبِيِّ صلى الله عليه وسلم أَوْ قَالَ قَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لِلاِبْنَةِ النِّصْفُ، وَلاِبْنَةِ الاِبْنِ السُّدُسُ، وَمَا بَقِيَ فَلِلأُخْتِ.
`Abdullah said, "The judgment I will give in this matter will be like the judgment of the Prophet, i.e. one-half is for the daughter and one-sixth for the son's daughter and the rest of the inheritance for the sister."