Śatapatha Brāhmaṇa ("of a hundred paths") 8.2.2.7

8.2.2.7

yadveva vaiśvadevīrupadadhāti | etadvai prajāpatiretasminnātmanaḥ pratihite 'kāmayata prajāḥ sṛjeya prajāyeyeti sa ṛtubhiradbhiḥ prāṇaiḥ saṃvatsareṇāśvibhyāṃ sayugbhūtvaitāḥ prajāḥ prājanayattathaivaitadyajamāna etābhirdevatābhiḥ sayugbhūtvaitāḥ prajāḥ prajanayati tasmādu sarvāsveva sajūḥ-sajūrityanuvartate

And, again, as to why he lays down the Vaisvadevî (bricks). At that time, when that (part) of his body had been restored, Pragâpati desired, 'May I create creatures, may I be reproduced!' Having entered into union with the seasons, the waters, the vital airs, the year, and the Asvins, he produced these creatures; and in like manner does this Sacrificer, by entering into union with those deities, now produce these creatures. Hence with all (of these bricks, the word) sagush ('in union with') recurs.