say obey allah and obey the messenger but if you turn away he is only responsible for the duty placed on him and you for that placed on you. if you obey him you shall be on the right guidance. the messengers duty is only to convey in a clear way .
قل أطيعوا الله وأطيعوا الرسول فإن تولوا فإنما عليه ما حمل وعليكم ما حملتم وإن تطيعوه تهتدوا وما على الرسول إلا البلاغ المبين