Mahabharata 1.173.21

वसिष्ठश्च महाभागः सर्वमेतदपश्यतज्ञानयोगेन महता तपसा च परंतप

vasiṣṭhaśca mahābhāgaḥ sarvametadapaśyatajñānayogena mahatā tapasā ca paraṃtapa

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