Sahih Al Bukhari Hadith Number 2331

Narrated Ibn `Umar: Allah’s Messenger (peace be upon him) gave the land of Khaibar to the Jew’s on the condition that they work on it and cultivate it, and be given half of its yield.

41  Agriculture
Hadith number 2331
Volume no 3
Chapter: 11 (Share-cropping with the Jews)