Mahabharata 18.5.8

18.5.8

muniḥ purāṇaḥ kauravya pārāśaryo mahāvrataḥ |
agādhabuddhiḥ sarvajño gatijñaḥ sarvakarmaṇām || 8 ||

Vaishampayana said, "Every one, O king of men, is not capable of returning to his own nature at the end of his deeds. Whether this is so or not, is, indeed a good question asked by thee. Hear, O king, this which is a mystery of the gods, O chief of Bharata’s race. It was explained (to us) by Vyasa of mighty energy, celestial vision and great prowess, that ancient ascetic, O Kauravya, who is the son of Parasara and who always observes high vows, who is of immeasurable understanding, who is omniscient, and who, therefore knows the end attached to all acts.