इति श्रीनारसिंहपुराणे ।नयतीति नरः प्रोक्तः परमात्मा सनातनः ।इति व्यासवचनम् ॥
In plain words
So it stands in the holy Nārasiṃha Purāṇa. He leads — and from that, the name Nara: the eternal Supreme Self. Those are Vyāsa's words.
Close to the Sanskrit
Thus, in the holy Nārasiṃha Purāṇa. 'He leads' — thus is he called Nara, the supreme, eternal Self. Thus, the statement of Vyāsa.