Mahabharata 6.2.1

वैशंपायन उवाच · vaiśaṃpāyana uvāca

ततः पूर्वापरे संध्ये समीक्ष्य भगवानृषिःसर्ववेदविदां श्रेष्ठो व्यासः सत्यवतीसुतः

tataḥ pūrvāpare saṃdhye samīkṣya bhagavānṛṣiḥsarvavedavidāṃ śreṣṭho vyāsaḥ satyavatīsutaḥ

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