Abū Nuʿaym > al-Masʿūdī > Abū ʿAwn > al-Qāsim > a man Āstaʾdhan And Rathatah

"To appoint more than one third (of the wealth) as an inheritance, so they agreed with him (authorizer) and then they went back on it after he died. Abdullah was asked about that, and he said, 'This revocation is not permissible.'" – Weak Chain

حَدَّثَنَا أَبُو نُعَيْمٍ حَدَّثَنَا الْمَسْعُودِيُّ عَنْ أَبِي عَوْنٍ عَنْ الْقَاسِمِ أَنَّ رَجُلًا اسْتَأْذَنَ وَرَثَتَهُ

أَنْ يُوصِيَ بِأَكْثَرَ مِنَ الثُّلُثِ فَأَذِنُوا لَهُ ثُمَّ رَجَعُوا فِيهِ بَعْدَ مَا مَاتَ فَسُئِلَ عَبْدُ اللَّهِ عَنْ ذَلِكَ فَقَالَ «هَذَا التَّكَرُّهُ لَا يَجُوزُ» – إسناده ضعيف