عَنْ عُبَادَةَ بْنِ الصَّامِتِ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَضَى لِلْجَدَّتَيْنِ مِنَ الْمِيرَاثِ بِالسُّدُسِ بَيْنَهُمَا بِالسَّوَاءِ
It is narrated from Sayyiduna Ubadah bin Samit (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) decided to give both the paternal grandmother and the maternal grandmother an equal share of one-sixth each from the inheritance.