What is peret? That which falls off as the grapes are harvested. [If] one was harvesting grapes, [and] he cut off a cluster, it became entangled in leaves, it fell from his hand to the ground, and grapes dropped off —- [they] belong to the owner.  [If] one places a basket under the grapevine when he harvests the grapes, he is robbing the poor. About this it is said: Move not the landmark of them that came up (Proverbs 22:28, 23:10).