Mishnayos Peah Perek 1 Mishnah 2

אין פוחתין לפאה מששים – from according to the Rabbis [no less than 1/60th]

אף על פי שאמרו אין לפאה שיעור – As we have stated (that there is no measure) from the Torah itself.

הכל לפי גודל השדה – If his field was large and the [number of] poor people few, he provides and increases upon the 1/60th measure – according to the size of his field; and if his field is small and the poor are many, he adds upon the 1/60th according to the multitude of the poor [in the midst of the community].

ולפי הענוה – [according to their humility]. There are those who have as their reading of the text ענוה – with a [letter] VAV, that is to say, according to his great measure of humility, he will increase [his gift] to the poor, based upon the language [found in] (Psalms 18:36), “Your care has made me great.” And Maimonides explained the expression as עניה [with a YOD], that is to say, how the earth will “respond” [as in Hosea 2:24 – “And the earth will respond with new grain and wine and oil…”]. And there are those who have as their reading of the text ענבה – with a BET, and its explanation is the large size of the grain and their smallness, for if the ears of corn of the field are in one place are full and good and in another shriveled [and] thin, he should not leave the corner of the field complete from the bad [grain], but he should estimate one-sixtieth for the bad [parts] and for the pleasing [parts].