Umar bin Ayoub al-Bdy عمر بن أيوب العبدي · Commercial Transactions (Kitab Al-Buyu)

I heard the Messenger of Allah (ﷺ) say: If any of you does not leave mukhabarah, he should take notice of war from Allah and His Apostle (ﷺ).

The Prophet (ﷺ) handed over the Jews of Khaibar the palm trees and the land of Khaibar on condition that they should employ what belonged to them in working on them, and that he should have half of the fruits.