Refusing to bow to Adam
“And when I have fashioned him and breathed into him of My spirit, then bow down before him.”
15:29So, when I have made him and have breathed into him of My Spirit, do ye fall down, prostrating yourselves unto him.
17:61And when We said unto the angels: Fall down prostrate before Adam and they fell prostrate all save Iblis, he said: Shall I fall prostrate before that which Thou hast created of clay?