One verse

Srimad Bhagavatam 10.16.1

10.16.1

श्रीशुक उवाच विलोक्य दूषितां कृष्णां कृष्ण: कृष्णाहिना विभु: । तस्या विशुद्धिमन्विच्छन् सर्पं तमुदवासयत् ॥ १ ॥

śrī-śuka uvāca vilokya dūṣitāṁ kṛṣṇāṁ kṛṣṇaḥ kṛṣṇāhinā vibhuḥ tasyā viśuddhim anvicchan sarpaṁ tam udavāsayat

śrī-śukaḥ uvāca
Śrī Śukadeva Gosvāmī said
vilokya
seeing
dūṣitām
contaminated
kṛṣṇām
the river Yamunā
kṛṣṇaḥ
Lord Śrī Kṛṣṇa
kṛṣṇa-ahinā
by the black serpent
vibhuḥ
the almighty Lord
tasyāḥ
of the river
viśuddhim
the purification
anvicchan
desiring
sarpam
serpent
tam
that
udavāsayat
sent away

Śukadeva Gosvāmī said: Lord Śrī Kṛṣṇa, the Supreme Personality of Godhead, seeing that the Yamunā River had been contaminated by the black snake Kāliya, desired to purify the river, and thus the Lord banished him from it.