muhammad is no more than a messenger and messengers have passed away before him. if then he were to die or be slain will you turn about on your heels? whoever turns about on his heels can in no way harm allah. as for the grateful ones allah will soon reward them.
وما محمد إلا رسول قد خلت من قبله الرسل أفإن مات أو قتل انقلبتم على أعقابكم ومن ينقلب على عقبيه فلن يضر الله شيئا وسيجزي الله الشاكرين