One verse

Srimad Bhagavatam 5.24.31

5.24.31

ततोऽधस्तात्पाताले नागलोकपतयो वासुकिप्रमुखा: शङ्खकुलिकमहाशङ्खश्वेतधनञ्जयधृतराष्ट्रशङ्खचूडकम्बलाश्वतरदेवदत्तादयो महाभोगिनो महामर्षा निवसन्ति येषामु ह वै पञ्चसप्तदशशतसहस्रशीर्षाणां फणासु विरचिता महामणयो रोचिष्णव: पातालविवरतिमिरनिकरं स्वरोचिषा विधमन्ति ॥ ३१ ॥

tato ’dhastat patale naga-loka-patayo vasuki-pramukhah sankha-kulika-mahasankha-sveta-dhananjaya-dhrtarastra-sankhacuda-kambalasvatara-devadattadayo maha-bhogino mahamarsa nivasanti yesam u ha vai panca-sapta-dasa-sata-sahasra-sirsanam phanasu viracita maha-manayo rocisnavah patala-vivara-timira-nikaram sva-rocisa vidhamanti.

tatah adhastat
beneath that planet Rasatala
patale
on the planet known as Patala
naga-loka-patayah
the masters of the Nagalokas
vasuki
by Vasuki
pramukhah
headed
sankha
Sankha
kulika
Kulika
maha-sankha
Mahasankha
sveta
Sveta
dhananjaya
Dhananjaya
dhrtarastra
Dhrtarastra
sankha-cuda
Sankhacuda
kambala
Kambala
asvatara
Asvatara
deva-datta
Devadatta
adayah
and so on
maha-bhoginah
very addicted to material happiness
maha-amarsah
greatly envious by nature
nivasanti
live
yesam
of all of them
u ha
certainly
vai
indeed
panca
five
sapta
seven
dasa
ten
sata
one hundred
sahasra
one thousand
sirsanam
of those possessing hoods
phanasu
on those hoods
viracitah
fixed
maha-manayah
very valuable gems
rocisnavah
full of effulgence
patala-vivara
the caves of the Patala planetary system
timira-nikaram
the mass of darkness
sva-rocisa
by the effulgence of their hoods
vidhamanti
disperse

Beneath Rasatala is another planeary system, known as Patala or Nagaloka, where there are many demoniac serpents, the masters of Nagaloka, such as Sankha, Kulika, Mahasankha, Sveta, Dhananjaya, Dhrtarastra, Sankhacuda, Kambala, Asvatara and Devadatta. The chief among them is Vasuki. They are all extremely angry, and they have many, many hoods—some snakes five hoods, some seven, some ten, others a hundred and others a thousand. These hoods are bedecked with valuable gems, and the light emanating from the gems illuminates the entire planeary system of bila-svarga.