Shatapatha Brahmana 13.7.1.14

13.7.1.14

tena haitena viśvakarmā bhauvana īje teneṣṭvātyatiṣṭhatsarvāṇi bhūtānīdaṃ sarvamabhavadatitiṣṭhati sarvāṇi bhūtānīdaṃ sarvam bhavati ya evam vidvāntsarvamedhena yajate yo vaitadevam veda

Visvakarman Bhauvana once performed this sacrifice, and having performed it he overpassed all beings, and became everything here; and verily he who, knowing this, performs the Sarvamedha, or who even knows this, overpasses all beings, and becomes everything here.