RV 1.56.5
वि यत् तिरो धरुणम् अच्युतं रजो ऽतिष्ठिपो दिव आतासु बर्हणा । स्वर्मीळ्हे यन् मद इन्द्र हर्ष्याहन् वृत्रं निर् अपाम् औब्जो अर्णवम् ॥
vi yat tiro dharuṇam acyutaṃ rajo 'tiṣṭhipo diva ātāsu barhaṇā | svarmīḷhe yan mada indra harṣyāhan vṛtraṃ nir apām aubjo arṇavam ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
When thou with might, upon the framework of the heaven, didst fix, across, air's region firmly, unremoved, In the light-winning war, Indra, in rapturous joy, thou smotest Vrtra dead and broughtest floods of rain.
Translated by Ralph T. H. Griffith (1896)