What is the ruling on reporting nursing negligence in a private hospital that causes harm to patients, knowing that one of the partners tolerates negligence while the other is very strict?

It is permissible to inform officials about the negligence of employees if the intention is to advise, correct the error, and preserve the interest of the work, and not for personal revenge. However, it is obligatory to first advise the negligent person; if they do not respond, then their matter should be raised to their supervisor. And if the official punishes the negligent justly, there is no blame.