Mahabharata 12.263.34

त्यक्त्वा मूलफलं सर्वं पर्णाहारोऽभवद्द्विजःपर्णं त्यक्त्वा जलाहारस्तदासीद्द्विजसत्तमः

tyaktvā mūlaphalaṃ sarvaṃ parṇāhāro'bhavaddvijaḥparṇaṃ tyaktvā jalāhārastadāsīddvijasattamaḥ

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