Muhammad is no more than an apostle: many Were the apostle that passed away before him. If he died or were slain, will ye then Turn back on your heels? If any did turn back on his heels, not the least harm will he do to God; but God (on the other hand) will swiftly reward those who (serve Him) with gratitude. (3:144)

Say: "I tell you not that with me are the treasures of God, nor do I know what is hidden, nor do I tell you I am an angel. I but follow what is revealed to me." Say: "can the blind be held equal to the seeing?" Will ye then consider not? (6:50)

Say: "I have no power over any good or harm to myself except as God willeth. If I had knowledge of the unseen, I should have multiplied all good, and no evil should have touched me: I am but a warner, and a bringer of glad tidings to those who have faith." (7:188)