حَدَّثَنَا أَيُّوبُ بْنُ مُحَمَّدٍ الرَّقِّيُّ، حَدَّثَنَا عُمَرُ بْنُ أَيُّوبَ، حَدَّثَنَا جَعْفَرُ بْنُ بُرْقَانَ، عَنْ مَيْمُونِ بْنِ مِهْرَانَ، عَنْ مِقْسَمٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ افْتَتَحَ رَسُولُ اللَّهِ صلى الله عليه وسلم خَيْبَرَ وَاشْتَرَطَ أَنَّ لَهُ الأَرْضَ وَكُلَّ صَفْرَاءَ وَبَيْضَاءَ ‏.‏قَالَ أَهْلُ خَيْبَرَ نَحْنُ أَعْلَمُ بِالأَرْضِ مِنْكُمْ فَأَعْطِنَاهَا عَلَى أَنَّ لَكُمْ نِصْفَ الثَّمَرَةِ وَلَنَا نِصْفٌ ‏.‏ فَزَعَمَ أَنَّهُ أَعْطَاهُمْ عَلَى ذَلِكَ فَلَمَّا كَانَ حِينَ يُصْرَمُ النَّخْلُ بَعَثَ إِلَيْهِمْ عَبْدَ اللَّهِ بْنَ رَوَاحَةَ فَحَزَرَ عَلَيْهِمُ النَّخْلَ وَهُوَ الَّذِي يُسَمِّيهِ أَهْلُ الْمَدِينَةِ الْخَرْصَ فَقَالَ فِي ذِهْ كَذَا وَكَذَا قَالُوا أَكْثَرْتَ عَلَيْنَا يَا ابْنَ رَوَاحَةَ ‏.‏ فَقَالَ فَأَنَا أَلِي حَزْرَ النَّخْلِ وَأُعْطِيكُمْ نِصْفَ الَّذِي قُلْتُ ‏.‏ قَالُوا هَذَا الْحَقُّ وَبِهِ تَقُومُ السَّمَاءُ وَالأَرْضُ قَدْ رَضِينَا أَنْ نَأْخُذَهُ بِالَّذِي قُلْتَ ‏.‏

Narrated Ibn 'Abbas

The Messenger of Allah (ﷺ) conquered Khaibar and stipulated that the land, along with every yellow and white asset, would belong to him. The people of Khaibar said, 'We know the land better than you do, so give it to us on the condition that we receive half of the produce and you receive half.' He gave it to them on that condition. When the time came for harvesting the date palms, he sent to them Abdullah ibn Rawahah, who estimated the yield of the date palms for them—this is what the people of Medina call al-khars (estimation). He said regarding these, 'There is such and such amount.' They said, 'You have given us an excessive estimate, O Ibn Rawahah!' He said, 'Shall I guarantee the estimate of the date palms and give you half of what I stated?' They said, 'This is the truth, and by this the heavens and the earth stand. We are satisfied to take it according to what you have said.'