Hadith
حَدَّثَنَا مُوسَى، حَدَّثَنَا جُوَيْرِيَةُ بْنُ أَسْمَاءَ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ قَالَ أَعْطَى رَسُولُ اللَّهِ صلى الله عليه وسلم خَيْبَرَ الْيَهُودَ أَنْ يَعْمَلُوهَا وَيَزْرَعُوهَا، وَلَهُمْ شَطْرُ مَا يَخْرُجُ مِنْهَا.
Narrated `Abdullah bin `Umar:Allah's Messenger (ﷺ) gave the land of Khaibar to the Jews on the condition that they would work on it and cultivate it and they would get half of its yield
Sahih
Sahih al-Bukhari 2720 ·Book 54, Hadith 9·Also available on sunnah.com·