Mahabharata 1.49.19

1.49.19

bhava svasthamanā nāga na hi te vidyate bhayam |
prayatiṣye tathā saumya yathā śreyo bhaviṣyati |
na me vāganṛtaṃ prāha svaireṣvapi kuto'nyathā || 19 ||

"Sauti continued, 'Thus addressed, Astika said unto his mother, 'Yes, I will.' And he then addressed the afflicted Vasuki, and as if infusing life into him, said, 'O Vasuki, thou best of snakes, thou great being, truly do I say, I shall relieve thee from that curse. Be easy, O snake! There is no fear any longer. I shall strive earnestly so that good may come! Nobody hath ever said that my speech, even in jest, hath proved false. Hence on serious occasions like this, I need not say anything more, O uncle, going thither today I shall gratify, with words mixed with blessings, the monarch Janamejaya installed at the sacrifice, so that, O excellent one, the sacrifice may stop. O highminded one, O king of the snakes, believe all that I say. Believe me, my resolve can never be unfulfilled.'