[Machine] "If a man bequeaths to another an amount equal to his son's share, he shall not have his own share completed until it is diminished."  

«إِذَا أَوْصَى الرَّجُلُ لِآخَرَ بِمِثْلِ نَصِيبِ ابْنِهِ فَلَا يَتِمُّ لَهُ مِثْلُ نَصِيبِهِ حَتَّى يَنْقُصَ مِنْهُ»  

[Machine] Regarding Al-Sha'bi's statement about a man who had three sons and he appointed a man to receive an equal share as one of them if they were four, Al-Sha'bi said, "He shall be given one-fifth."  

عَنْ الشَّعْبِيِّ فِي رَجُلٍ كَانَ لَهُ ثَلَاثَةُ بَنِينَ فَأَوْصَى لِرَجُلٍ مِثْلَ نَصِيبِ أَحَدِهِمْ لَوْ كَانُوا أَرْبَعَةً قَالَ الشَّعْبِيُّ «يُعْطَى الْخُمُسَ»  

[Machine] About a man who left behind two sons and he advised to give an equal share to one of them if they were three, he said, "Advise to give a quarter."  

عَنْ رَجُلٍ تَرَكَ ابْنَيْنِ وَأَوْصَى بِمِثْلِ نَصِيبِ أَحَدِهِمْ لَوْ كَانُوا ثَلَاثَةً قَالَ «أَوْصَى بِالرُّبُعِ»  

[Machine] In a man who specified a share similar to that of some of the heirs, he said, "It is not permissible, even if it is less than a third." Abu Muhammad said, "It is good."  

فِي رَجُلٍ أَوْصَى بِمِثْلِ نَصِيبِ بَعْضِ الْوَرَثَةِ قَالَ «لَا يَجُوزُ وَإِنْ كَانَ أَقَلَّ مِنَ الثُّلُثِ» قَالَ أَبُو مُحَمَّد «هُوَ حَسَنٌ»