the Messenger of Allah ﷺ entered into a contract with the people of Khaibar for one half of the fruits or crops yielded.

أَنَّ رَسُولَ اللَّهِ ﷺ عَامَلَ أَهْلَ خَيْبَرَ بِالشَّطْرِ مِمَّا يَخْرُجُ مِنْ ثَمَرٍ أَوْ زَرْعٍ