Ali bin Ms'hr علي بن مسهر · The Chapters Regarding Zakat

the Messenger of Allah enjoined Zakatul-Fitr, one Sa of dates or one Sa of barley.Abdullah said: The people made two Mudd (equal to half of a Sa) of wheat as its equivalent.

that Ala bin Hadrami said: “The Messenger of Allah sent me to Bahrain or Hajar. I used to go to a garden that was shared by some brothers, one of whom had become Muslim. I would take the Ushr (one-tenth of the harvest) from the Muslim, and Kharaj from the Mushrik.”