Devibhagavatapurana 10.13.50

10.13.50

varaṃ vavre svabuddhisthaṃ mā bhavenmṛtyurityapi |
śrutvāruṇavaco brahmā bodhayāmāsa sādaram ||

Then the intelligent Daitya asked from Brahmâ the following boon that “I shall not die. Grant this.” Brahmâ then gently explained to him:-- “O Best of the Dânavas! See that Brahmâ, Visnu, Mahes'vara and others are not free from this limitation of death! What to speak then for others! I cannot grant you a boon that is an impossibility. Ask what is possible and just. The intelligent persons never show an eagerness to an impossibility.” Hearing the above words of Brahmâ, Aruna again said with devotion:-- “O Deva! If Thou art unwilling to grant me the above boon, then, O Lord! Grant me such a boon, as is practicable, that my death shall not be caused by any war, nor by any arms or weapons, nor by any man or any woman, by any biped or quadruped or any combination of two and grant me such a boon, such a large army as I can conquer the Devas.” Hearing the words of the Daitya, Brahmâ said “Let that be so” and went back instantly to His own abode. Then, puffed up with that boon, the Daitya Aruna called on all the other Daityas that lived in the nether regions. The Daityas, that were under his shelter, came and saluted him, as their king and, by his command, they sent messengers to the Heavens to fight with the Devas. Hearing from the messenger that the Daityas were willing to fight with the Devas, Indra trembled with fear and went instantly with the Devas to the abode of Brahmâ. Taking Brahmâ, too, along with them from there, they went to the Visnu Loka and took Visnu with them and all went to the S’iva Loka.