Sanskrit

एतान्न हन्तुमिच्छामि घ्नतोऽपि मधुसूदन। अपि त्रैलोक्यराज्यस्य हेतोः किं नु महीकृते।।1.35।।

Summary

I would not kill them, even for three worlds; why then for this earth alone? It matters not if I myself am killed.