or like the speech of the bone, the arms, and the legs—then knowing this would be obligatory, especially since the Jahmīs among the Muʿtazilites and others hold that such knowledge is one of the fundamentals of faith without which belief is incomplete.
They even say: (1) awareness of this point is obligatory prior to (2) acknowledging the Messengership, and that the acknowledgment itself cannot be sound unless Allah is declared free of speech that inheres in Him, because speech, they claim, can exist only in a corporeal, spatial substance (3). Therefore, in their view, one must first deny that attribute before affirming the Messenger, for (4) anything corporeal must be originated and created and is liable to need—an implication that, to them, undermines the very basis on which they establish knowledge of the Messenger’s veracity. They have stated this explicitly in their writings (5).
If matters were truly as they allege, clarifying this would be among the divinely required duties. Yet Allah never commanded it at all, despite the servants’ supposed need for it, and despite the rule that postponing clarification past the time of need is impermissible. Thus it is evident that He has neither commanded nor made it obligatory (6), and this invalidates their claim.
Moreover, He never forbade the servants from calling it His Speech, even though that designation clearly means He Himself spoke it, not that He created it within some other body.