One verse

Srimad Bhagavatam 3.2.31

3.2.31

विपन्नान् विषपानेन निगृह्य भुजगाधिपम् । उत्थाप्यापाययद्गावस्तत्तोयं प्रकृतिस्थितम् ॥ ३१ ॥

vipannan visa-panena nigrhya bhujagadhipam utthapyapayayad gavas tat toyam prakrti-sthitam

vipannan
perplexed in great difficulties
visa-panena
by drinking poison
nigrhya
subduing
bhujaga-adhipam
the chief of the reptiles
utthapya
after coming out
apayayat
caused to drink
gavah
the cows
tat
that
toyam
water
prakrti
natural
sthitam
situated.

The inhabitants of Vrndavana were perplexed by great difficulties because a certain portion of the Yamuna was poisoned by the chief of the reptiles (Kaliya). The Lord chastised the snake-king within the water and drove him away, and after coming out of the river, He caused the cows to drink the water and proved that the water was again in its natural state.