Ibn Umar (Allah be pleased with them) reported that Messenger of Allah ﷺ contracted with the people of Khaibar the (trees) on the condition that he would have half the produce in fruits and harvest.  

أَنَّ رَسُولَ اللَّهِ ﷺ عَامَلَ أَهْلَ خَيْبَرَ بِشَطْرِ مَا يَخْرُجُ مِنْهَا مِنْ ثَمَرٍ أَوْ زَرْعٍ  

Messenger of Allah ﷺ handed over the land of Khaibar (on the condition) of the share of produce of fruits and harvest, and he also gave to his wives every year one hundred wasqs: eighty wasqs of dates and twenty wasqs of barley. When 'Umar became the caliph he distributed the (lands and trees) of Khaibar, and gave option to the wives of Allah's Apostle ﷺ to earmark for themselves the land and water or stick to the wasqs (that they got) every year. They differed in this matter. Some of them opted for land and water, and some of them opted for wasqs every year. 'A'isha and Hafsa were among those who opted for land and water.  

أَعْطَى رَسُولُ اللَّهِ ﷺ خَيْبَرَ بِشَطْرِ مَا يَخْرُجُ مِنْ ثَمَرٍ أَوْ زَرْعٍ فَكَانَ يُعْطِي أَزْوَاجَهُ كَلَّ سَنَةٍ مِائَةَ وَسْقٍ ثَمَانِينَ وَسْقًا مِنْ تَمْرٍ وَعِشْرِينَ وَسْقًا مِنْ شَعِيرٍ فَلَمَّا وَلِيَ عُمَرُ قَسَمَ خَيْبَرَ خَيَّرَ أَزْوَاجَ النَّبِيِّ ﷺ أَنْ يُقْطِعَ لَهُنَّ الأَرْضَ وَالْمَاءَ أَوْ يَضْمَنَ لَهُنَّ الأَوْسَاقَ كُلَّ عَامٍ فَاخْتَلَفْنَ فَمِنْهُنَّ مَنِ اخْتَارَ الأَرْضَ وَالْمَاءَ وَمِنْهُنَّ مَنِ اخْتَارَ الأَوْسَاقَ كُلَّ عَامٍ فَكَانَتْ عَائِشَةُ وَحَفْصَةُ مِمَّنِ اخْتَارَتَا الأَرْضَ وَالْمَاءَ  

He (Hadrat 'Umar, gave option to the wives of Allah's Apostle ﷺ that land would be earmarked for them, but he made no mention of water.  

أَنَّ رَسُولَ اللَّهِ ﷺ عَامَلَ أَهْلَ خَيْبَرَ بِشَطْرِ مَا خَرَجَ مِنْهَا مِنْ زَرْعٍ أَوْ ثَمَرٍ وَاقْتَصَّ الْحَدِيثَ بِنَحْوِ حَدِيثِ عَلِيِّ بْنِ مُسْهِرٍ وَلَمْ يَذْكُرْ فَكَانَتْ عَائِشَةُ وَحَفْصَةُ مِمَّنِ اخْتَارَتَا الأَرْضَ وَالْمَاءَ وَقَالَ خَيَّرَ أَزْوَاجَ النَّبِيِّ ﷺ أَنْ يُقْطِعَ لَهُنَّ الأَرْضَ وَلَمْ يَذْكُرِ الْمَاءَ  

I will allow you to continue here, so long as we would desire. The rest of the hadith is the same, but with this addition:" The fruit would be distributed equal to the half of Khaibar. And out of hall of the produce of the land, Allah's Apostle (may peace be be upon him) got the fifth part."  

لَمَّا افْتُتِحَتْ خَيْبَرُ سَأَلَتْ يَهُودُ رَسُولَ اللَّهِ ﷺ أَنْ يُقِرَّهُمْ فِيهَا عَلَى أَنْ يَعْمَلُوا عَلَى نِصْفِ مَا خَرَجَ مِنْهَا مِنَ الثَّمَرِ وَالزَّرْعِ فَقَالَ رَسُولُ اللَّهِ ﷺ أُقِرُّكُمْ فِيهَا عَلَى ذَلِكَ مَا شِئْنَا ثُمَّ سَاقَ الْحَدِيثَ بِنَحْوِ حَدِيثِ ابْنِ نُمَيْرٍ وَابْنِ مُسْهِرٍ عَنْ عُبَيْدِ اللَّهِ وَزَادَ فِيهِ وَكَانَ الثَّمَرُ يُقْسَمُ عَلَى السُّهْمَانِ مِنْ نِصْفِ خَيْبَرَ فَيَأْخُذُ رَسُولُ اللَّهِ ﷺ الْخُمُسَ  

Abdullah b. Umar (Allah be pleased with them) reported that Messenger of Allah ﷺ returned to the Jews of Khaibar the date-palms of Khaibar and its land on the condition that they should work upon them with their own wealth (seeds, implements), and give half of the yield to Messenger of Allah ﷺ.  

عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ دَفَعَ إِلَى يَهُودِ خَيْبَرَ نَخْلَ خَيْبَرَ وَأَرْضَهَا عَلَى أَنْ يَعْتَمِلُوهَا مِنْ أَمْوَالِهِمْ وَلِرَسُولِ اللَّهِ ﷺ شَطْرُ ثَمَرِهَا  

We would let you continue there so long as we will desire. So they continued (to cultivate the lands) till 'Umar externed them to Taima' ang Ariha (two villages in Arabia, but out of Hijaz).  

وَأَنَّ رَسُولَ اللَّهِ ﷺ لَمَّا ظَهَرَ عَلَى خَيْبَرَ أَرَادَ إِخْرَاجَ الْيَهُودِ مِنْهَا وَكَانَتِ الأَرْضُ حِينَ ظُهِرَ عَلَيْهَا لِلَّهِ وَلِرَسُولِهِ وَلِلْمُسْلِمِينَ فَأَرَادَ إِخْرَاجَ الْيَهُودِ مِنْهَا فَسَأَلَتِ الْيَهُودُ رَسُولَ اللَّهِ ﷺ أَنْ يُقِرَّهُمْ بِهَا عَلَى أَنْ يَكْفُوا عَمَلَهَا وَلَهُمْ نِصْفُ الثَّمَرِ فَقَالَ لَهُمْ رَسُولُ اللَّهِ ﷺ نُقِرُّكُمْ بِهَا عَلَى ذَلِكَ مَا شِئْنَا فَقَرُّوا بِهَا حَتَّى أَجْلاَهُمْ عُمَرُ إِلَى تَيْمَاءَ وَأَرِيحَاءَ