Śatapatha Brāhmaṇa ("of a hundred paths") 6.2.1.6

6.2.1.6

sa aikṣata | nānā vā idaṃ devatābhya ālipse 'gnervahaṃ rūpāṇi kāmaye hantainānagnibhyaḥ kāmāyālabhā iti tānagnibhyaḥ kāmāyālabhata tadyadagnibhya iti bahūni hyagnirūpāṇyabhyadhyāyadatha yatkāmāyeti kāmena hyālabhata tānāprītānparyagnikṛtānudāco nītvā samajñapayat

He considered, 'For different deities, indeed, I mean to slaughter now; but I myself desire (kam) Agni's forms: well then, I will slaughter them for the Agnis, as for the (object of my) desire.' He slaughtered them for the Agnis, as for (his) desire,--to wit, 'for the Agnis,' because many were the forms of Agni he had set his mind upon; and 'for the desire,' because it was with a desire that he slaughtered them. Having appeased them and carried the fire round them, he led them northwards and slew them.