Musannaf Ibn Abi Shayba 28:496

Hafs ibn Ghiyath narrated to us, from Hisham ibn Urwah, from his father, who said: The Messenger of Allah (peace and blessings of Allah be upon him) granted a piece of land from the land of Banu al-Nadir, which contained palm trees and small trees, as an *iqta* (land grant). And Abu Bakr and Umar also granted *iqta*.