Islam prohibits the abuse of employees' hard work. The Quran states, "Woe to those who deal in fraud, those who, when they have to receive by measure from men, exact full measure, but when they have to give by measure or weight to men, give less than due" (83: 1-4).
This verse highlights the importance of being honest and fair in all transactions, including paying employees for their work.
Employers who abuse their employees' hard work by not paying them their due wages are committing a grave sin in the eyes of Allah.