The Great Epic of the Bhārata dynasty 13.84.19

13.84.19

etadvākyamupaśrutya tato devā mahātmanaḥ |
jagmuḥ saṃsiddhasaṃkalpāḥ paryeṣanto vibhāvasum || 19 ||

They that are endued with penances are competent to destroy even the boon-giving deities who are indestructible. Will, or Like, or Desire (which is identifiable with Agni) sprang in former times and is the most eternal of all creatures. Agni is the Lord of the universe. He is incapable of being apprehended or described. Capable of going everywhere and existing in all things, he is the Creator of all beings. He lives in the hearts of all creatures. Endued with great puissance, He is older than Rudra himself. Let that eater of sacrificial libations, who is a mass of energy, be searched out. That illustrious deity will accomplish this desire of your hearts.' Hearing these words of the Grandsire, the high-souled gods then proceeded to search out the god of fire with hearts cheerful in consequence of their purpose having been achieved. The gods and the Rishis then searched every part of the three worlds, their hearts filled with the thought of Agni and eagerly desiring to obtain a sight of him. Endued with penances, possessed of prosperity, celebrated over all the worlds, those high-souled ones, all crowned with ascetic success, sojourned over every part of the universe, O foremost one of Bhrigu's race. They failed, however, to find out the eater of sacrificial libations who had concealed himself by merging his self into self.