If there is any negligence on their part, resulting in the death of the patient, or if the doctor is not skilled in performing surgery, then in this case he is responsible, and he must offer expiation (Kaffarah) and the blood money (Diyah) must be paid. But if the doctor is an expert and skilled in performing surgery, and the patient was fit to undergo this procedure, and there was no negligence on his part, then there is no blame on the doctors in this case, and they are not liable and do not have to offer expiation.