Deuteronomy 24:12-15

If he is a poor man, do not sleep with the garment he has given as security. Be sure to return it  to him at sunset. Then he will sleep in it and bless you, and this will be counted as righteousness to you before the LORD your God.  “Do not oppress a hired worker who is poor and needy, whether one of your Israelite brothers or one of the resident aliens in a town  in your land. You are to pay him his wages each day before the sun sets, because he is poor and depends on them.  Otherwise he will cry out to the LORD against you, and you will be held guilty.