(8) باب الْمُزَارَعَةِ بِالشَّطْرِ وَنَحْوِهِ
Narrated `Abdullah bin `Umar:
The Prophet (ﷺ) concluded a contract with the people of Khaibar to utilize the land on the condition that half the products of fruits or vegetation would be their share. The Prophet (ﷺ) used to give his wives one hundred Wasqs each, eighty Wasqs of dates and twenty Wasqs of barley. (When `Umar became the Caliph) he gave the wives of the Prophet (ﷺ) the option of either having the land and water as their shares, or carrying on the previous practice. Some of them chose the land and some chose the Wasqs, and `Aisha chose the land.
Reference: Sahih al-Bukhari 2328
In-book reference: Book 41, Hadith 9
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 39, Hadith 521