Then it is upon Us, to make clear its minute details.
Then it is we who will explain it.
It's explanation is upon Us
Again on Us rests the explaining of it
Then that truly on Us (is) its clarification/explanation
It is only God Who will explain Qur’an to you
Then indeed, to explain its details to you is upon Us
Then upon US rests the expounding thereof
Then surely upon Us is the clear exposition (of its implications)
The responsibility of explaining it lies again on Us
Then it is for Us (Allah) to make it clear to you