Śatapatha Brāhmaṇa ("of a hundred paths") 4.3.1.26

4.3.1.26

atha yadvaiśvadevaṃ grahaṃ gṛhṇāti | idamevaitatsarvamimāḥ prajā yathāyathaṃ vyavasṛjati tasmādimāḥ prajāḥ punarabhyāvartam prajāyante śukrapātreṇa gṛhṇātyeṣa vai śukro ya eṣa tapati tasya ye raśmayaste viśve devāstasmācukrapātreṇa gṛhṇāti

Now, in that he draws the Vaisvadeva graha, thereby he sends forth this All, these creatures in due order: whence these creatures are generated again repeatedly. He draws it with the Sukra cup, for the Sukra (bright) is yonder burning (sun), and what rays of his there are, they are the All-gods: therefore he draws it with the Sukra cup.