Abu Hurairah (RA) and Abu Said al-Khudri (RA) reported that Allahs Messenger ﷺ deputed a person from Banu Adi al-Ansari to collect revenue from Khaibar. He came with a fine quality of dates, whereupon Allahs Messenger ﷺ said to him: Are all the dates of Khaibar like this? He said: Allahs Messenger, it is not so. We buy one sa of (fine quality of dates) for two sas out of total output (including even the inferior quality of dates), whereupon Allahs Messenger ﷺ said: Dont do that, but like for like, or sell this (the inferior quality and receive the price) and then buy with the price of that, and that would make up the measure.