Ibn Numayr narrated to us, my father narrated to us — and Abu Bakr ibn Abi Shaybah narrated to us, and the wording is his — he said: Abdullah ibn Numayr and Abu Usamah narrated to us, from Ubaydullah, from Nafi', from Ibn Umar, who said: The Messenger of Allah (peace be upon him) made obligatory the Zakat al-Fitr as one sa' of dates or one sa' of barley, upon every slave and free person, young and old.