Abu Sa'id · Representation, Authorization, Business by Proxy

Allah's Messenger (ﷺ) employed someone as a governor at Khaibar. When the man came to Medina, he brought with him dates called Janib. The Prophet (ﷺ) asked him, "Are all the dates of Khaibar of this kind?" The man replied, "(No), we exchange two Sa's of bad dates for one Sa of this kind of dates (i.e. Janib), or exchange three Sa's for two." On that, the Prophet (ﷺ) said, "Don't do so, as it is a kind of usury…