Who worked as a revenue collector in a company

Q: I am a mechanic ; I go to some workshops to repair machines, and get some money from the workshop owner in return for this work without telling the owner of the machine. What is the ruling in this regard? May Allah reward you with the best.

A: After studying the question, the Committee has answered the question as follows: "Doing so is not permissible as it is a deception of the person who has trusted you." May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.