Sunan an-Nasa'i, Volume 4, Book 35, Hadith 3962 (DarusSalam) ⓘ

It was narrated from Ibn 'Umar that the Prophet gave the datepalms of Khaibar and their land to the Jews of Khaibar on condition that they would take care of them at their expense, and the Messenger of Allah would have half of their fruits.

أَخْبَرَنَا عَبْدُ الرَّحْمَنِ بْنُ عَبْدِ اللَّهِ بْنِ عَبْدِ الْحَكَمِ، قَالَ حَدَّثَنَا شُعَيْبُ بْنُ اللَّيْثِ، قَالَ حَدَّثَنَا أَبِي، عَنْ مُحَمَّدِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم دَفَعَ إِلَى يَهُودِ خَيْبَرَ نَخْلَ خَيْبَرَ وَأَرْضَهَا عَلَى أَنْ يَعْمَلُوهَا بِأَمْوَالِهِمْ وَأَنَّ لِرَسُولِ اللَّهِ صلى الله عليه وسلم شَطْرَ ثَمَرَتِهَا‏.‏‏