Śatapatha Brāhmaṇa ("of a hundred paths") 8.2.4.16

8.2.4.16

ete vai te paśavaḥ | yāṃstatprajāpatirvayasāpnotsa vai paśum prathamamāhātha vayo 'tha cando vayasā ca hyenāṃścandasā ca parigatyātmannadhattātmannakuruta tathaivainānayametadvayasā caiva candasā ca parigatyātmandhatta ātmankurute

These then are those very beasts which Pragâpati overtook by his vigour. The animal he (the priest) mentions first, then vigour, then the metre, for having hemmed them in with vigour and the metre, he put them into himself, and made them his own; and in like manner does he (the sacrificer) now hem them in with vigour and the metre, and put them into himself, and make them his own.