RV 1.121.11
अनु त्वा मही पाजसी अचक्रे द्यावाक्षामा मदताम् इन्द्र कर्मन् । त्वं वृत्रम् आशयानं सिरासु महो वज्रेण सिष्वपो वराहुम् ॥
anu tvā mahī pājasī acakre dyāvākṣāmā madatām indra karman | tvaṃ vṛtram āśayānaṃ sirāsu maho vajreṇa siṣvapo varāhum ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
The mighty Heaven and Earth, those bright expanses that have no wheels, joyed, Indra, at thine exploit. Vrtra, the boar who lay amid the waters, to sleep thou sentest with thy mighty thunder.
Translated by Ralph T. H. Griffith (1896)