The Great Epic of the Bhārata dynasty 1.49.28

1.49.28

sa tatra vārito dvāḥsthaiḥ praviśandvijasattamaḥ |
abhituṣṭāva taṃ yajñaṃ praveśārthī dvijottamaḥ || 28 ||

"Sauti continued, 'Then that best of Brahmanas, Astika, quelling the terrible fear of the Vasuki's heart, and taking it, as it were, on himself, wended, for the relief of the king of the snakes, with speed to Janamejaya's sacrifice blessed with every merit. And Astika having gone thither, beheld the excellent sacrificial compound with numerous Sadasyas on it whose splendour was like unto that of the Sun or Agni. But that best of Brahmanas was refused admittance by the door-keepers. And the mighty ascetic gratified them, being desirous of entering the sacrificial compound. And that best of Brahmanas, that foremost of all virtuous men, having entered the excellent sacrificial compound, began to adore the king of infinite achievements, Ritwiks, the Sadasyas, and also the sacred fire.'"