निर्वैरम् without enmity, यत् as such, इदम् this, रौद्रम् wrath, परप्राणाभिहिंसनम् showing violence on other beings, मोहात् out of delusion, क्रियते is carried out, तत् that, तृतीयम् third, ते you, समुपस्थितम् befallen.

(But) you are a victim to the third (vice born of lust) i.e. showing violence without cause for enmity