Mahabharata 12.273.7
स वज्रः सुमहातेजाः कालाग्निसदृशोपमःक्षिप्रमेव महाकायं वृत्रं दैत्यमपातयत्
sa vajraḥ sumahātejāḥ kālāgnisadṛśopamaḥkṣiprameva mahākāyaṃ vṛtraṃ daityamapātayat
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book