38:75 ((Allah)) said: "O Iblis! What prevents thee from prostrating thyself to one whom I have created with my hands? Art thou haughty? Or art thou one of the high (and mighty) ones?"
قَالَ يَا إِبْلِيسُ مَا مَنَعَكَ أَن تَسْجُدَ لِمَا خَلَقْتُ
بِيَدَيَّ أَسْتَكْبَرْتَ أَمْ كُنتَ مِنَ الْعَالِينَ (38:75)
in the above aayah kareema, Allah(S) says to iblis that why dont you prostrate to Adam(A) then gives two options or reasons for iblis's refusal.
2. or are you from 'aaleen'
now, ISHARA in kalam Allah cannot be a hypothetical so there are personalities or 'musharun elay' addressed as 'aaleen' same root letter as ALI. however, the reason iblis did not do sajda because either of takabbur or belonging to aaleen. he is obviously not from aaleen; the exempt ones so his refusal was because of pride.
it is also clear from Qoran shareef that categorically every single 'angel' prostrated without exception so aaleen cannot be angels either.
therefore the big question is Who are these aaleen. if Allah(S) does ishara then it necessitates that there are its musharun elay in reality who were exempt from prostration.