Mahabharata 12.335.72
एतद्धयशिरो राजन्नाख्यानं तव कीर्तितम्पुराणं वेदसमितं यन्मां त्वं परिपृच्छसि
etaddhayaśiro rājannākhyānaṃ tava kīrtitampurāṇaṃ vedasamitaṃ yanmāṃ tvaṃ paripṛcchasi
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book