The Ruling on Working with a Forged Certificate

Question:
A man says: I submitted my file to obtain a job from the government, but I did not get that job because I only hold a secondary school certificate. So I bought a higher diploma certificate and got the job, and I worked in it for three years. Throughout this period, I have felt guilty. Now I have taken a leave of absence without pay. What do you advise him? Should he resign from this job, and what is the status of the money he has received from this position?

Answer:
If he performed the work as required and did it well, then what he takes is lawful, because it is in exchange for his work, in exchange for his labor. As for his deception, he should repent to Allah, seek His forgiveness, and not return to it. What he took, if he performed the work as required, is lawful for him. However, he erred in the forgery, so he must repent to Allah the Exalted. But if he is not skilled in the work, then it is not permissible for him to continue in a job he is not skilled in, yes, or to neglect it.