Bhagavatapurana 4.24.37

4.24.37

svargāpavarga-dvārāya nityaṃ śuci-ṣade namaḥ /
namo hiraṇya-vīryāya cātur-hotrāya tantave //

37. I bow to Him who is the way (guide) to the (celestial region and the heavenly kingdom) and who is always present in the pure heart. I bow to Him whose energy is gold (*i. e.*, who is in the form of Agni), who is the sacrificial activity (being its support and means) and its thread (*i. e.*, the cause of its uninterrupted and extensive practice).