One verse

Srimad Bhagavatam 5.24.12

5.24.12

यत्र हि महाहिप्रवरशिरोमणय: सर्वं तम: प्रबाधन्ते ॥ १२ ॥

yatra hi mahahi-pravara-siro-manayah sarvam tamah prabadhante.

yatra
where
hi
indeed
maha-ahi
of great serpents
pravara
of the best
sirah-manayah
the gems on the hoods
sarvam
all
tamah
darkness
prabadhante
drive away.

Many great serpents reside there with gems on their hoods, and the effulgence of these gems dissipates the darkness in all directions.