وَإِذ قُلنا لِلمَلائِكَةِ اسجُدوا لِآدَمَ فَسَجَدوا إِلّا إِبليسَ أَبىٰ وَاستَكبَرَ وَكانَ مِنَ الكافِرينَ

And when We said to the angels, “Prostrate yourselves before Adam,” they all did, except Iblis. He refused, was arrogant, and became one of the ungrateful.