RV 2.21.4
अनानुदो वृषभो दोधतो वधो गम्भीर ऋष्वो असमष्टकाव्यः । रध्रचोदः श्नथनो वीळितस् पृथुर् इन्द्रः सुयज्ञ उषसः स्वर् जनत् ॥
anānudo vṛṣabho dodhato vadho gambhīra ṛṣvo asamaṣṭakāvyaḥ | radhracodaḥ śnathano vīḷitas pṛthur indraḥ suyajña uṣasaḥ svar janat ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
The strong who never yields, who slew the furious fiend, the deep, the vast, of wisdom unattainable; Who speeds the good, the breaker-down, the firm, the vast,-Indra whose rites bring joy hath made the light of Dawn.
Translated by Ralph T. H. Griffith (1896)