What is the ruling on one whose manager obliges him to dismiss latecomers and those who are absent without excuse?

Question:
The questioner says: I am an employee, and my employer tasks me with dismissing employees who are absent or late without excuse. What should I do? Will I be the cause of harming people, or should I disobey him, though I do not know the reason?

Answer:
If there is a choice in the matter, do not take on this job; let someone else take it on. But if he forces you to do it and says you must perform this work, or else you will suffer such and such harm, then do not wrong anyone, do not wrong anyone. Speak the truth: the one who is absent or playing around is in the wrong. But before you point out his error, you must advise him.
Advise this person and say to him: I am tasked with this work, and it is a trust in my care, but I wish you well. I want you to stop this negligence and do your work. Otherwise, in the end, I will report to them the negligence and error I see in you. When you have done that, you have discharged your duty toward him and fulfilled the obligation.