RV 1.87.5
पितुः प्रत्नस्य जन्मना वदामसि सोमस्य जिह्वा प्र जिगाति चक्षसा । यद् ईम् इन्द्रं शम्य् ऋक्वाण आशताद् इन् नामानि यज्ञियानि दधिरे ॥
pituḥ pratnasya janmanā vadāmasi somasya jihvā pra jigāti cakṣasā | yad īm indraṃ śamy ṛkvāṇa āśatād in nāmāni yajñiyāni dadhire ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
We speak by our descent from our primeval Sire; our tongue, when we behold the Soma, stirs itself. When, shouting, they had joined Indra in toil of fight, then only they obtained their sacrificial names.
Translated by Ralph T. H. Griffith (1896)