Śatapatha Brāhmaṇa ("of a hundred paths") 8.5.2.10

8.5.2.10

atha yā uttarataḥ | grīṣmastāsām prathamā varṣā dvitīyā hemantastṛtīyā hemantaścaturthī varṣāḥ pañcamī grīṣmaḥ ṣaṣṭhī grīṣmaḥ saptamī varṣā aṣṭamī hemanto navamī yajamāna evātra daśamī sa eṣa yajamāna etasyāṃ virājyadhyūḍhaḥ pratiṣṭhita ṛtumayyāmarvācīśca parācīścopadadhāti tasmādeta ṛtavo 'rvāñcaśca parāñcaśca

And, again, as to why he lays it down by means of Indra and Agni, and settles it by means of Visvakarman. When Pragâpati had become relaxed (disjointed), the deities took him and went off in different directions. Indra and Agni, and Visvakarman took his middle part, and kept going away from him.