Peah, Chapter Four, Mishnah Ten | Conservative Yeshiva By Dr. Joshua Kulp Gleanings are mentioned in Leviticus 19:9-10, and 23:22. Mishnah Ten. 1) What are gleanings? That which falls down at the time of harvesting. 2) If while he was harvesting, he harvested a handful, or plucked a fistful, and then a thorn pricked ...