Hadith 2409
Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that the Noble Prophet (peace and blessings be upon him) commanded that Sadaqat al-Fitr should be given as one sa’ of barley or one sa’ of dates on behalf of every young and old, free and slave. Then the people considered two mudd (half a sa’) of wheat to be equal in value to one sa’ of barley and the like.
Hadith 2410
It is narrated from Sayyiduna Tha‘labah bin Sa‘eer (may Allah be pleased with him) that when the Messenger of Allah (peace and blessings be upon him) stood to deliver the sermon, he commanded that a sa‘ (measure) of dates or a sa‘ of barley be given as Sadaqat al-Fitr on behalf of every small and great, free and slave person.