Shatapatha Brahmana 4.3.4.10

4.3.4.10

atha dvitīyāṃ juhoti | citraṃ devānāmudagādanīkaṃ cakṣurmitrasya varuṇasyāgneḥ | āprā dyāvāpṛthivī antarikṣaṃ sūrya ātmā jagatastasthuṣaśca svāhetyetayā triṣṭubhā lokamevaitayopapraiti

He then makes the second offering with this trishtubh verse (Vâg. S. VII, 42; Rig-veda I, 115, I), 'The brilliant front of the gods hath risen, the eye of Mitra, Varuna, and Agni: Sûrya, the soul of the movable and immovable, hath filled the heaven and the earth and the air,--Hail!' whereby he approaches the world (of the gods).