the [previous] predicate; the meaning is: Say, 'They are established for those who believe in the worldly life, [being] exclusive [to them] on the Day of Resurrection.'
And whoever reads it in the accusative case (nasb), it is [acting] as a circumstantial qualifier (hal).
"Thus do We detail the verses," meaning: We clarify them through command and prohibition, "for a people who know," and they are the believers who accepted that from Allah.