say to them obey god and his messenger. if you turn away the messenger and the people will each be responsible for their own obligations. if you follow the messenger you will have the right guidance. the responsibility of the messenger is only to preach.
قل أطيعوا الله وأطيعوا الرسول فإن تولوا فإنما عليه ما حمل وعليكم ما حملتم وإن تطيعوه تهتدوا وما على الرسول إلا البلاغ المبين