Leviticus 19:13

19:13 Thou shalt not defraud thy neighbour, neither rob [him]: the wages of him that is hired shall not abide with thee all night until the morning.

Deuteronomy 24:15

24:15 At his day thou shalt give [him] his hire, neither shall the sun go down upon it; for he [is] poor, and setteth his heart upon it: lest he cry against thee unto the LORD, and it be sin unto thee.