If a questioner says: "And what is the grammatical justification for assigning the accusative case (naṣb) to it [i.e., ghishāwah]?"

It is said to him: You make it accusative by assuming an implicit verb "made" (1), as if He said: "And He placed (jaʿala) over their vision a veil," then omitted "made," since there was in the beginning of the statement that which indicated it. It is also possible that its accusative case is by way of conformity (itbāʿ) to the grammatical place of "hearing," since its place was accusative, even if it is not sound to re-apply the governing agent (ʿāmil) to "veil," but rather by making one part of the statement conform to another, just as He, May His Remembrance Be Exalted, said: {There will circulate among them young boys made eternal * With cups, pitchers} then He said: {And fruit from whatever they select * And the meat of fowl from whatever they desire * And fair women with large, lovely eyes} [Sūrat al-Wāqiʿah: 17–22], so He put "meat" and "fair women" in the genitive case by coupling them to "fruit," in conformity of the latter part of the speech with its former part. And it is well known that meat is not circulated around, nor are fair women with large eyes, but it is as the poet said, describing his horse:

I fed her straw and cold water ... until she spent the winter with weeping eyes. (2)