RV 1.109.5
युवाम् इन्द्राग्नी वसुनो विभागे तवस्तमा शुश्रव वृत्रहत्ये । ताव् आसद्या बर्हिषि यज्ञे अस्मिन् प्र चर्षणी मादयेथां सुतस्य ॥
yuvām indrāgnī vasuno vibhāge tavastamā śuśrava vṛtrahatye | tāv āsadyā barhiṣi yajñe asmin pra carṣaṇī mādayethāṃ sutasya ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
You, I have heard, were mightiest, Indra-Agni, when Vrtra fell and when the spoil was parted. Sit at this sacrifice, ye ever active, on the strewn grass, and with the juice delight you.
Translated by Ralph T. H. Griffith (1896)