כִּ֤י תָבֹא֙ בְּקָמַ֣ת רֵעֶ֔ךָ וְקָטַפְתָּ֥ מְלִילֹ֖ת בְּיָדֶ֑ךָ וְחֶרְמֵשׁ֙ לֹ֣א תָנִ֔יף עַ֖ל קָמַ֥ת רֵעֶֽךָ׃ (ס)
Quando entrares nos campos do teu próximo, poderás colher espigas com as mãos, mas não brandirás a foice sobre os campos do teu próximo. {ס}
Sefer HaMitzvot
He prohibited the worker from eating from something that he is working on, during the time of his work (see Mishneh Torah, Laws of Hiring 12:3 and Hagahot Maimoniyot there), when it is attached to the ground. And that is His saying, "but do not lift a sickle over your fellow’s standing grainstalks" (Deuteronomy 23:26). They said, "'But a sickle,' is to include anyone with a sickle, at the time of the sickling." Meaning, at the time of the harvest, do not harvest for yourself. And it is already known that this verse is speaking about a worker. So when it says, "When you enter," it means to say with it, "When you, the worker, entered" - like the Targum (Onkelos Deuteronomy 23:26) said, "when you are hired." And likewise in Metzia (Bava Metzia 87a), they said, "These eat according to the Torah - one involved with the attached [produce] at the time of the work's end." And the regulations of this commandment have already been explained there. (See Ki Tetzei; Mishneh Torah, Hiring 12.)