مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 3049
Inheritance and Wills
Shares of Inheritance - Section 2
وَعَنْ بُرَيْدَةَ: أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ جَعَلَ لِلْجَدَّةِ السُّدُسَ إِذَا لَمْ تَكُنْ دونهَا أم. رَوَاهُ أَبُو دَاوُد
Buraida said that the Prophet (ﷺ) appointed a sixth to a grandmother if no mother is left to inherit before her. Abu Dawud transmitted it.
Mishkat al-Masabih, 3049لم تتمّ دراسته (الألباني)