Arabic (Original)
وَأَمَّا مَا أَخْبَرَنَا أَبُو الْحَسَنِ عَلِيُّ بْنُ أَحْمَدَ بْنِ عَبْدَانَ أنا أَحْمَدُ بْنُ عُبَيْدٍ الصَّفَّارُ ثنا أَبُو مُسْلِمٍ ثنا الْقَعْنَبِيُّ ثنا عَبْدُ اللهِ يَعْنِي ابْنَ عُمَرَ الْعُمَرِيَّ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ أَنَّ النَّبِيَّ ﷺ قَسَمَ يَوْمَ خَيْبَرَ لِلْفَارِسِ سَهْمَيْنِ وَلِلرَّاجِلِ سَهْمًا فَعَبْدُ اللهِ الْعُمَرِيُّ كَثِيرُ الْوَهْمِ وَقَدْ رُوِيَ ذَلِكَ مِنْ وَجْهٍ آخَرَ عَنِ الْقَعْنَبِيِّ عَنْ عَبْدِ اللهِ الْعُمَرِيِّ بِالشَّكِّ فِي الْفَارِسِ أَوِ الْفَرَسِ قَالَ الشَّافِعِيُّ فِي الْقَدِيمِ كَأَنَّهُ سَمِعَ نَافِعًا يَقُولُ لِلْفَرَسِ سَهْمَيْنِ وَلِلرَّجُلِ سَهْمًا فَقَالَ لِلْفَارِسِ سَهْمَيْنِ وَلِلرَّاجِلِ سَهْمًا وَلَيْسَ يَشُكُّ أَحَدٌ مِنْ أَهْلِ الْعِلْمِ فِي تَقْدِمَةِ عُبَيْدِ اللهِ بْنِ عُمَرَ عَلَى أَخِيهِ فِي الْحِفْظِ
English Translation
Ibn Umar narrated that the Prophet (peace be upon him) divided (the spoils) on the day of Khaybar, giving the horseman two shares and the foot soldier one share. But Abdullah al-Umari is prone to many errors. It was also narrated through another chain from al-Qa'nabi from Abdullah al-Umari with uncertainty about 'the horseman' or 'the horse.' Al-Shafi'i said in the old opinion: It is as if he heard Nafi' say 'two shares for the horse and one share for the man,' so he said 'two shares for the horseman and one share for the foot soldier.' No one among the scholars doubts the preference of Ubaydullah ibn Umar over his brother in memorization.