Śatapatha Brāhmaṇa ("of a hundred paths") 4.2.1.16

4.2.1.16

so 'dhvaryuḥ paryeti | suvīro vīrānprajanayanparīhītyattā hyetamanvattā hi vīrastasmādāha suvīro vīrānprajanayanparīhītyabhi rāyaspoṣeṇa yajamānamiti tadyajamānāyāśiṣamāśāste yadāhābhi rāyaspoṣeṇa yajamānamiti

The Adhvaryu walks round it (on the north side) with (Vâg. S. VII, 13), 'Abounding in heroes, producing heroes'--for to this (libation) corresponds the eater, and the hero is the eater: hence he says, 'Abounding in heroes, producing heroes!'--'encompass thou the sacrificer with growth of wealth!' By saying 'Encompass thou the sacrificer with growth of wealth!' he invokes a blessing upon the sacrificer.