That is that He commanded us to give the wage of an employee on its day, and not to delay it to another day. And that is His, may He be exalted, saying, "You must pay him his wage on the same day" (Deuteronomy 24:15). And the law of this commandment is that a day-worker is to collect [his wage] during any of the night, and a night-worker is to collect during any of the day - as we will explain in the negative commandment (Sefer HaMitzvot, Negative Commandments 238). And the regulations of this commandment have already been explained in Chapter 9 of [Bava] Metzia. And there, it is explained that this is obligatory with any daily worker, whether a stranger or a Jew - it is a positive commandment to pay on time. (See Parashat Ki Tetzei; Mishneh Torah, Hiring 11).