When thy Lord was revealing to the angels, 'I am with you; so confirm the believers. I shall cast into the unbelievers' hearts terror; so smite above the necks, and smite every finger of them!'
Koran 8:12
However, one often hears the argument that the Muslims believe the Koran is logical and passes the needs of believers.
That said, it would be interesting to see whether the passages that appear to be superstitious described below are denied by the Muslim posters here. I somehow doubt it.
They said, 'Moses, wilt thou cast, or shall we be the casters?'
He said, 'You cast.' And when they cast they put a Spell upon the people's eyes, and called forth fear of them, and produced a mighty sorcery.
And We revealed to Moses: 'Cast thy staff!' And lo, it forthwith swallowed up their lying invention.
Koran 7:115-117
Were the ancient peoples capable of casting Magic spells? The Koran says they were and that Moses dabbled in Magic to counter that of his opponents.