Mahabharata 7.158.56

वध्यमानेषु चास्त्रेषु पीडितः सूतनन्दनःवासवीं समरे शक्तिं ध्रुवं मुञ्चेद्युधिष्ठिर

vadhyamāneṣu cāstreṣu pīḍitaḥ sūtanandanaḥvāsavīṃ samare śaktiṃ dhruvaṃ muñcedyudhiṣṭhira

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