This tradition has also been narrated by 'Umar from the Messenger of Allah (ﷺ) through a different chain of narrators. It mentions only the sale of the slave. It has also been transmitted by Nafi' on the authority of Ibn 'Umar from the Prophet (ﷺ) indicating only the sale of palm-trees. Abu Dawud said: Al-Zuhri and Nafi' differed among themselves in four traditions. This is one of them.