Mahabharata 12.329.2

श्रीभगवानुवाचहन्त ते वर्तयिष्यामि पुराणं पाण्डुनन्दनआत्मतेजोद्भवं पार्थ शृणुष्वैकमना मम

śrībhagavānuvācahanta te vartayiṣyāmi purāṇaṃ pāṇḍunandanaātmatejodbhavaṃ pārtha śṛṇuṣvaikamanā mama

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