On the authority of Abu Hurayrah (may Allah be pleased with him), who said that the Messenger of Allah (Peace Be Upon Him) said that Allah the Almighty said:
There are three whose adversary I shall be on the Day of Resurrection: a man who has given his word by Me and has broken it; a man who has sold a free man and has consumed the price; and a man who has hired a workman, has exacted his due in full from him and has not given him his wage.
Related by al-Bukhari (also by Ibn Majah and Ahmad ibn Hanbal).
Very powerful. Isn’t there also one about paying for work done for you before the sweat has dried from the laborer’s back?
Indeed there is Intlxpatr.
The Messenger of Allah (Peace Be Upon Him) said “Pay the worker while the sweat is still on the brow.”