Mahabharata 7.60.19

अथ जग्राह गोविन्दो रश्मीन्रश्मिवतां वरःमातलिर्वासवस्येव वृत्रं हन्तुं प्रयास्यतः

atha jagrāha govindo raśmīnraśmivatāṃ varaḥmātalirvāsavasyeva vṛtraṃ hantuṃ prayāsyataḥ

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