Mahabharata 1.46.25

1.46.25

śrutvā caitaṃ nṛpaśreṣṭha pārthivasya parābhavam |
asya carṣeruttaṅkasya vidhatsva yadanantaram || 25 ||

"And Kasyapa going back, Takshaka, approaching in disguise, blasted, with the fire of his poison, thy virtuous father, the first of kings, then staying in his mansion with all precautions. And after that, thou wast, O tiger among men, been installed (on the throne). And, O best of monarchs, we have thus told thee all that we have seen and heard, cruel though the account is. And hearing all about the discomfiture of thy royal father, and of the insult to the Rishi Utanka, decide thou that which should follow!