RV 10.91.11
यस् तुभ्यम् अग्ने अमृताय मर्त्यः समिधा दाशद् उत वा हविष्कृति । तस्य होता भवसि यासि दूत्यम् उप ब्रूषे यजस्य् अध्वरीयसि ॥
yas tubhyam agne amṛtāya martyaḥ samidhā dāśad uta vā haviṣkṛti | tasya hotā bhavasi yāsi dūtyam upa brūṣe yajasy adhvarīyasi ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
When mortal man presents to thee Immortal God, Agni, his fuel or his sacrificial gift, Then thou art his Adhvaryu, Hotar, messenger, callest the Gods and orderest the sacrifice.
Translated by Ralph T. H. Griffith (1896)