Deuteronomy 24:14; Deuteronomy 24:15

14 "You shall not oppress a hired servant who is poor and needy, whether he is one of your brothers or one of the sojourners who are in your land within your towns.

15 You shall give him his wages on the same day, before the sun sets (for he is poor and counts on it), lest he cry against you to the LORD, and you be guilty of sin.