RV 1.102.8
त्रिविष्टिधातु प्रतिमानम् ओजसस् तिस्रो भूमीर् नृपते त्रीणि रोचना । अतीदं विश्वम् भुवनं ववक्षिथाशत्रुर् इन्द्र जनुषा सनाद् असि ॥
triviṣṭidhātu pratimānam ojasas tisro bhūmīr nṛpate trīṇi rocanā | atīdaṃ viśvam bhuvanaṃ vavakṣithāśatrur indra januṣā sanād asi ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Of thy great might there is a three counterpart, the three earths, Lord men and the three realms of light. Above this whole world, Indra, thou hast waxen great: without a foe art thou, nature, from of old.
Translated by Ralph T. H. Griffith (1896)