Mahabharata 1.99.14

यो व्यस्य वेदांश्चतुरस्तपसा भगवानृषिःलोके व्यासत्वमापेदे कार्ष्ण्यात्कृष्णत्वमेव च

yo vyasya vedāṃścaturastapasā bhagavānṛṣiḥloke vyāsatvamāpede kārṣṇyātkṛṣṇatvameva ca

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