Sunan Ibn Majah Book 16, Hadith 8
“Give the worker his wages before his sweat dries.”
(Allah (SWT) says:) “I am the opponent of three on the Day of Resurrection, and if I am someone's opponent I will defeat him: A man who makes promises in My Name, then proves treacherous; a man who sells a free man and consumes his price; and a man who hires a worker, makes use to him, then does not give him his wages.”
“I heard 'Utbah bin Nuddar say: 'We were with the Messenger of Allah (ﷺ) and he recited Ta-Sin. When he reached the story of Musa, he said: 'Musa (A.S) hired himself out for eight years, or ten, in return for his chastity and food in his stomach.' ”