Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 12
Sanskrit:
आशीविषतमाहीन्द्रं दमित्वा विमदं ह्रदात् । प्रसह्योद्वास्य यमुनां चक्रेऽसौ निर्विषोदकाम् ॥ १२ ॥
ITRANS:
āśī-viṣatamāhīndraṁdamitvā vimadaṁ hradātprasahyodvāsya yamunāṁcakre ’sau nirviṣodakām
Translation:
Kṛṣṇa chastised the most poisonous serpent, Kāliya, and after humbling him He drove him forcibly from the lake of the Yamunā. In this way the Lord made the water of that river free of the snake’s powerful poison.