Sayyidina Ibn Umar (RA) reported that Allah’s Messenger ﷺ made sadaqatul-Fitr obligatory on (every Muslim), male or female freeman or slave, (at the rate of) one sa’ dates or barley. He said that people later changed it to a half sa’ of wheat. [Ahmed5174, Bukhari 1511, Muslim 984, Abu Dawud 1615, 2496, Ibn e Majah 1825]