Mahabharata 12.201.26

ऋषेर्मेधातिथेः पुत्रः कण्वो बर्हिषदस्तथात्रैलोक्यभावनास्तात प्राच्यां सप्तर्षयस्तथा

ṛṣermedhātitheḥ putraḥ kaṇvo barhiṣadastathātrailokyabhāvanāstāta prācyāṃ saptarṣayastathā

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