RV 6.5.4
यो नः सनुत्यो अभिदासद् अग्ने यो अन्तरो मित्रमहो वनुष्यात् । तम् अजरेभिर् वृषभिस् तव स्वैस् तपा तपिष्ठ तपसा तपस्वान् ॥
yo naḥ sanutyo abhidāsad agne yo antaro mitramaho vanuṣyāt | tam ajarebhir vṛṣabhis tava svais tapā tapiṣṭha tapasā tapasvān ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Agni, whoever secretly attacks us, the neighbour, thou with Mitra's might! who harms us, Burn him with thine own Steers for ever youthful, burning with burning heat, thou fiercest burner.
Translated by Ralph T. H. Griffith (1896)