Mahabharata 13.44.43

न हि धर्मविदः प्राहुः प्रमाणं वाक्यतः स्मृतम्येषां वै शुल्कतो निष्ठा न पाणिग्रहणात्तथा

na hi dharmavidaḥ prāhuḥ pramāṇaṃ vākyataḥ smṛtamyeṣāṃ vai śulkato niṣṭhā na pāṇigrahaṇāttathā

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