Deuteronomy 24:12-15

MLV(i) 12 And if he is a poor man, you will not sleep with his pledge. 13 You will surely restore to him the pledge when the sun goes down, that he may sleep in his garment and bless you. And it will be righteousness to you before Jehovah your God.
14 You will not oppress a hired servant who is poor and needy, whether he is of your brothers, or of your travelers that are in your land within your gates. 15 You will give him his hire in his day, neither will the sun go down upon it, for he is poor and sets his heart upon it, lest he cry against you to Jehovah and it is sin to you.