Śatapatha Brāhmaṇa ("of a hundred paths") 7.4.2.5

7.4.2.5

tāṃ vai prajāpatinopadadhāti | prajāpatirhyevaitatsvayamātmanaḥ pratyadhatta dhruvāsīti sthirāsītyetadatho pratiṣṭhitāsīti dharuṇeti pratiṣṭhā vai dharuṇamāstṛtā viśvakarmaṇeti prajāpatirvai viśvakarmā tenāstṛtāsītyetanmā tvā samudra udvadhīnmā suparṇa iti rukbho vai samudraḥ puruṣaḥ suparṇastau tvā modvadhiṣṭāmityetadavyathamānā pṛthivīṃ dṛṃheti yathaiva yajustathā bandhuḥ

He puts it on by means of Pragâpati, for Pragâpati thereby took back to himself (that foundation) of his body. [Vâg. S. XIII, 16] 'Steady thou art,' that is, 'Firm thou art, or established thou art;'--'supporting,' for that which supports is a foundation;--'laid down by Visvakarman;' Visvakarman is Pragâpati, thus, 'laid down by that one;'--'May the ocean, may the bird not injure thee!' the ocean doubtless is the gold plate, and the bird is the man: thus, 'May those two not injure thee!'--'Not shaking, steady thou the earth!' as the text, so the meaning.