Knowing that the chief of the celestials had been filled with the prowess of others, Vitra sent forth fearful roars. The earth, the directions, the heaven and the mountains all began to tremble.
ज्ञात्वा बलस्थं त्रिदशाधिपं तु ननाद वृत्रो महतो निनादान। तस्य प्रणादेनधरा दिशश्च खं द्यौर्नगाश्चापि चचाल सर्वम्॥