RV 6.18.4
सद् इद् धि ते तुविजातस्य मन्ये सहः सहिष्ठ तुरतस् तुरस्य । उग्रम् उग्रस्य तवसस् तवीयो ऽरध्रस्य रध्रतुरो बभूव ॥
sad id dhi te tuvijātasya manye sahaḥ sahiṣṭha turatas turasya | ugram ugrasya tavasas tavīyo 'radhrasya radhraturo babhūva ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
For true, I deem, thy strength is, thine the Mighty, thine, O Most Potent, thine the Conquering Victor; Strong, of the strong, Most Mighty, of the mighty, thine, driver of the churl to acts of bounty.
Translated by Ralph T. H. Griffith (1896)