Core message
“Which of the Aalaa’ (wondrous acts of power) of the Lord of both of you will you both deny/declare to be false/dismiss/undermine?”
فَبِأَيِّ آلَاءِ رَبِّكُمَا تُكَذِّبَانِ
“Then, which of the Aalaa’ (wondrous acts of power) of the Lord of both of you will you both deny/declare to be false/dismiss/undermine?”.
“Which of the Aalaa’ (wondrous acts of power) of the Lord of both of you will you both deny/declare to be false/dismiss/undermine?”
The wording confronts denial directly by asking “which” could be denied among the wondrous acts of power.
Defined here as “wondrous acts of power” — the focus of the question.
The address is in the dual form: the Lord of both of you; the question is posed to two together.
Expressed as:
The question asks for a specific instance among the wondrous acts of power that could be denied.
Scope is bounded by “Aalaa’ (wondrous acts of power)” and by the dual addressees in “both of you”.
The phrasing directly challenges any attempt to deny, declare false, dismiss, or undermine those acts.
آلَاءِ
Aalaa’ — “wondrous acts of power”.