Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: In the blessed time of the Prophet (peace and blessings be upon him), people used to give one sa’ of barley, or one sa’ of dates, or one sa’ of wheat, or one sa’ of raisins as Sadaqat al-Fitr. When the era of Sayyiduna Umar (may Allah be pleased with him) came, wheat became more abundant, so he fixed half a sa’ of wheat in place of all those things.