Ta-Ha - 20:116

وَإِذْ قُلْنَا لِلْمَلَائِكَةِ اسْجُدُوا لِآدَمَ فَسَجَدُوا إِلَّا إِبْلِيسَ أَبَى
[20:116]
And when We said to the angels: Make obeisance to Adam, they made obeisance, but Iblis (did it not); he refused.
When We said to the angels, "Prostrate yourselves to Adam", they prostrated themselves, but not Iblis: he refused.
And when We said unto the angels: Fall prostrate before Adam, they fell prostrate (all) save Iblis; he refused.