Which case, and why?

Know that declaring incomparability (tanzīh), in the view of the folk of the realities, is—with respect to the divine side—the very self of delimiting and restricting. So the one who declares incomparability is either ignorant or someone of ill courtesy. But if the two of them declare it without qualification and profess it [as the whole truth], then the one who professes the revealed laws, the believer, if he declares incomparability and halts at declaring incomparability and sees nothing other than that, has behaved with ill courtesy and has given the lie to the Real and to the messengers (God's blessings be upon them) without being aware of it. He imagines that he is in [possession of] what has been attained, while he is in what has slipped away [from him].