أَمْ عِندَهُمْ خَزَآئِنُ رَبِّكَ أَمْ هُمُ ٱلْمُصَۣيْطِرُونَ
Am'indahum khazaaa'inu rabbika am humul musaitiroon
Czy oni posiadają skarby twego Pana? Czy też są zarządzającymi?
Or do they hold the treasures of your Lord? Or are they the ones in control?
Khazaʾin are storehouses, the sealed reserves a ruler keeps against need, and the question asks whether these opponents hold them. Musaytir traces to ruling lines across a page and from there to keeping a register over other people; the Prophet is told elsewhere that he is not one over anyone, and he is told to disclaim the storehouses too. Both halves name powers nobody present can claim.