RV 7.3.5
तम् इद् दोषा तम् उषसि यविष्ठम् अग्निम् अत्यं न मर्जयन्त नरः । निशिशाना अतिथिम् अस्य योनौ दीदाय शोचिर् आहुतस्य वृष्णः ॥
tam id doṣā tam uṣasi yaviṣṭham agnim atyaṃ na marjayanta naraḥ | niśiśānā atithim asya yonau dīdāya śocir āhutasya vṛṣṇaḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
The men have decked him both at eve and morning, Most Youthful Agni, as they tend a courser. They kindle him, a guest within his dwelling: bright shines the splendour of the worshipped Hero.
Translated by Ralph T. H. Griffith (1896)