If the treatment of a patient was incorrectly done with negative peer reviews, then the physician is at a lawsuit liability.
In his introduction of the first chapter for one of his books, Al-Ruhawi writes the following: "The first thing in which a physician must believe is that all in this world has only one able creator who performs all deeds wilfully.
The second article of faith in which a physician must believe is that he have credence in the great Allah with a firm affection, and is devoted to Him with all his reason, soul, and free will.
The third faith which a physician must possess is that Allah sent His messengers to mankind to teach them what is good since the mind alone is not sufficient.
The work was based on Hippocrates and Galen and consisted of twenty chapters on various topics related to medical ethics.