What should I do as an employee monitoring the case of an injured person in a private company, knowing that the company registered his salary with social insurance at less than his actual salary, which affects the value of his rightful compensation, and if I speak up about his right, I may be harmed?

If an employee witnesses negligence, betrayal, or injustice from another employee, he must condemn it and strive to prevent violations to the best of his ability, especially if he is the only one aware of them. The Prophet, peace and blessings be upon him, said: "Whoever among you sees an evil, let him change it with his hand; if he cannot, then with his tongue; if he cannot, then with his heart—and that is the weakest of faith." He may be obliged to condemn it if he is the only one who knows about the evil or is able to remove it.

If the worker does not comply after being advised, it is obligatory to report him to the competent authority, as Allah Almighty says: {And cooperate in righteousness and piety}, and the Prophet, peace and blessings be upon him, said: "Religion is sincere advice."

As for someone who cannot condemn due to fear of harm, he is excused, and he must inform the rights-holder in a way that does not harm him. As for the issue of social security and salary reductions, it involves details that should be referred to scholars.