Detestability of Using the Labor of a Worker before Agreeing on Wages and Delay Payment of His Wages

4. Ali ibn Ibrahim has narrated from his father from Harun ibn Muslim from Mas’adah ibn Sadaqah who has said the following: “Abu ‘Abd Allah عليه السلام, has said, ‘Whoever believes in Allah and on Day of Judgment must not make a person work for him on hire until he knows how much his wages are, and if one hires a person and keeps him from Friday prayer, he is held responsible for his sin; and if he allows him to attend Friday prayer they will share the reward.’”