RV 4.21.4
स्थूरस्य रायो बृहतो य ईशे तम् उ ष्टवाम विदथेष्व् इन्द्रम् । यो वायुना जयति गोमतीषु प्र धृष्णुया नयति वस्यो अच्छ ॥
sthūrasya rāyo bṛhato ya īśe tam u ṣṭavāma vidatheṣv indram | yo vāyunā jayati gomatīṣu pra dhṛṣṇuyā nayati vasyo accha ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
That Indra will we laud in our assemblies, him who is Lord of great and lasting riches, Victor with Vayu where the herds are gathered, who leads with boldness on to higher fortune.
Translated by Ralph T. H. Griffith (1896)