The Great Epic of the Bhārata dynasty 13.85.24

13.85.24

ādināthaśca lokasya tatparaṃ brahma taddhruvam |
sarvakāmadamityāhustatra havyamudāvahat || 24 ||

The Planets and Constellations and other stars that have been set in their respective orbits in the firmament, are regarded as the (burning) charcoals of Agni. The first Creator of the universe declared Agni to be Supreme Brahma and Eternal, and the giver of all wishes. This is verily a mystery.