avācyavādāṃśca bahūn vadiṣyanti tavāhitāḥ |nindantastava sāmarthyaṃ tato duḥkhataraṃ nu kim ||
Your enemies will say many things that should never be said, mocking your ability. What could be more painful than that?
Explanation
Krishna continues urging Arjuna to fight, pointing to the shame he would face if he withdrew from battle. His foes would slander his strength and skill with unspeakable insults, and Krishna asks what could hurt more. Here he appeals to honor and duty (dharma) as a warrior, before moving on to deeper teachings.