Jewish Babylonian Talmud – Tract Pesachim – Regulations concerning the time for eating leavened bread on the eve of Passover–material used for making unleavened bread and bitter herbs.
p. 30 CHAPTER II. REGULATIONS CONCERNING THE TIME FOR EATING LEAVENED BREAD ON THE EVE OF PASSOVER--MATERIAL USED FOR MAKING UNLEAVENED BREAD AND BITTER HERBS. MISHNA: As long as it is lawful to eat leavened bread, one may also give it to his domestic or wild animals or to fowls; he may also sell it to strangers or