3,126. What Size Field Requires Peah?

Hilchos Matnos Aniyim 2:3

Peah must be left from any size parcel of land, even if it belongs to partners. We see this from Leviticus 19:9 and 23:22: “the harvest of your land.” [In Hebrew, the word “your” is in the plural, a distinction not apparent in English.] This means even if the land belongs to more than one person.

Hilchos Matnos Aniyim 2:4

If non-Jews harvest a field for themselves, if thieves harvest a field, if ants destroy a field’s produce, or if the produce is wrecked by the wind or an animal, then the field is exempt from peah. This is because peah only applies standing grain.