Mahabharata 12.121.11

अथोक्तमेतद्वचनं प्रागेव मनुना पुराजन्म चोक्तं वसिष्ठेन ब्रह्मणो वचनं महत्

athoktametadvacanaṃ prāgeva manunā purājanma coktaṃ vasiṣṭhena brahmaṇo vacanaṃ mahat

Our plain-language meaning of this verse is waiting for scholar review.