Śatapatha Brāhmaṇa ("of a hundred paths") 7.5.2.5

7.5.2.5

tadvā etatkriyate | yaddevā akurvannidaṃ nvasmātte paśavo noccikramiṣanti yattvetatkaroti yaddevā akurvaṃstatkaravāṇītyatho prāṇeṣvevainānetatsaṃgṛhya purastātpratīca ātmandhatte

Now the same thing which the gods did is done here. The animals do not, indeed, want to run away from him; but when he does this, it is because he wants to do what the gods did: having thus seized them by (the outlets of) the vital airs, he takes them into himself from the front towards the back.