Ghee and meat together

It was narrated that Ibn ‘Umar said that ‘Umar entered upon him when he was eating, and he made room for him in the middle of the gathering. He said:
Bismillah, then he took a morsel and ate it, then a second. Then he said: “I notice some fat in the food but it is not the fat of the meat.” ‘Abdullah said: “O Commander of the Believers! I went out to the marketplace looking for some fatty meat (bones with plenty of meat on them) to buy, but it was expensive, so I bought some lean meat (bones with not much meat on them) for a Dirham, and added a Dirham’s worth of ghee. I wanted my family to go through it bone by bone.” ‘Umar said: “The Messenger of Allah ﷺ never had these two things together; he would eat one and give the other in charity.”

حَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا يَحْيَى بْنُ عَبْدِ الرَّحْمَنِ الأَرْحَبِيُّ، حَدَّثَنَا يُونُسُ بْنُ أَبِي الْيَعْفُورِ، عَنْ أَبِيهِ، عَنِ ابْنِ عُمَرَ، قَالَ دَخَلَ عَلَيْهِ عُمَرُ وَهُوَ عَلَى مَائِدَتِهِ فَأَوْسَعَ لَهُ عَنْ صَدْرِ الْمَجْلِسِ فَقَالَ بِسْمِ اللَّهِ . ثُمَّ ضَرَبَ بِيَدِهِ فَلَقِمَ لُقْمَةً ثُمَّ ثَنَّى بِأُخْرَى ثُمَّ قَالَ إِنِّي لأَجِدُ طَعْمَ دَسَمٍ مَا هُوَ بِدَسَمِ اللَّحْمِ . فَقَالَ عَبْدُ اللَّهِ يَا أَمِيرَ الْمُؤْمِنِينَ إِنِّي خَرَجْتُ إِلَى السُّوقِ أَطْلُبُ السَّمِينَ لأَشْتَرِيَهُ فَوَجَدْتُهُ غَالِيًا فَاشْتَرَيْتُ بِدِرْهَمٍ مِنَ الْمَهْزُولِ وَحَمَلْتُ عَلَيْهِ بِدِرْهَمٍ سَمْنًا فَأَرَدْتُ أَنْ يَتَرَدَّدَ عِيَالِي عَظْمًا عَظْمًا . فَقَالَ عُمَرُ مَا اجْتَمَعَا عِنْدَ رَسُولِ اللَّهِ ﷺ قَطُّ إِلاَّ أَكَلَ أَحَدَهُمَا وَتَصَدَّقَ بِالآخَرِ . قَالَ عَبْدُ اللَّهِ خُذْ يَا أَمِيرَ الْمُؤْمِنِينَ فَلَنْ يَجْتَمِعَا عِنْدِي إِلاَّ فَعَلْتُ ذَلِكَ . قَالَ مَا كُنْتُ لأَفْعَلَ .