Mahabharata 3.146.57
तं वज्रनिष्पेषसममास्फोटितरवं भृशम्श्रुत्वा शैलगुहासुप्तैः सिंहैर्मुक्तो महास्वनः
taṃ vajraniṣpeṣasamamāsphoṭitaravaṃ bhṛśamśrutvā śailaguhāsuptaiḥ siṃhairmukto mahāsvanaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book