Peah 6:5-6

Peah 6:5

If two sheaves are left behind, they are considered shich’cha; three are not. Two piles of olives or carobs are considered shich’cha; three are not. Two stalks of flax are considered shich’cha; three are not. Two grapes are considered peret (gleanings - the equivalent of leket for grapes); three are not. Two stalks of grain are considered leket; three are not. All of these reflect the opinion of Beis Hillel; Beis Shammai say that three go to the needy and when it’s four they remain the property of the land owner.

Peah 6:6

If a sheaf contains the volume of two seah (about seven gallons) and it was forgotten, it is not shich’cha. If two sheaves collectively contain two seah, Rabban Gamliel says it goes to the owner and the Sages say it goes to the needy. Rabban Gamliel asked the Sages, “Does dividing it among more sheaves make the owner’s case better or worse?” They answered, “It makes his case better.” He responded, “If that’s the case, then if one forgotten sheaf of two seah goes to the owner, that should certainly be the case with two sheaves totaling two seah.” “No,” they replied, “one sheaf of two seah is like a pile (to which shich’cha does not apply) but two sheaves of that size are like bundles of smaller sheaves (to which shich’cha would apply).”