Hisham bin Abi 'Abdullah al-Dastawa'i هشام بن أبي عبد الله الدستوائي · The Book of Zakah

"The Messenger of Allah enjoined Zakatul-Fitr, a Sa' of dates or a Sa of barley, upon the free person and the slave, male and female, young and old, among the Muslims. He commanded that it be given before the people went out to the ('fd) prayer."

"There are four whom Allah, the Mighty and Sublime, hates: The vendor who sells his wares by means of false oaths, the poor man who shows off, the old man who commits Zina and the Imam who is unjust."