Leviticus 19:9

And when ye reap the harvest of your land, ye shall not complete the reaping of your field with exactness, and thou shalt not gather that which falls from thy reaping.

And when ye reap the harvest of your land, thou shalt not wholly reap the corners of thy field, neither shalt thou gather the gleanings of thy harvest.

“‘When you reap the harvest of your land, you shall not wholly reap the corners of your field, neither shall you gather the gleanings of your harvest.