He imagined that he is not to return.
He thought that he will never be called to account
and surely thought he would never return (to his Lord)
Surely he thought that he would never return (to Allah) -
That he truly thought/assumed that (E) he will never/not return
It never came to such a person’s mind that one day he will meet his Creator and would be accountable for his actions
He assumed that he does not have to return
He, indeed, thought that he would never return to God
No doubt, he thought he would never return (to his Lord) for reckoning
He deemed that he would never return (to God)
Verily, he thought that he would never come back (to Us)