Talmud zu Jeschijahu 17:78

Rebbi Simon said, the reason of Rebbi Jehudah (Is. 17:6): “There will remain in it gleanings as when one plucks olives, two or three kernels⁶⁵Meaning that one, two, or three berries on one branch really belong to the poor even according to Rebbi Jehudah, but four or more, even though they grow out right from the stem and do not form bunches, are not called “berries” but “grape.”.” More than that is a grape.