One verse

Srimad Bhagavatam 4.28.2

4.28.2

त एकदा तु रभसा पुरञ्जनपुरीं नृप । रुरुधुर्भौमभोगाढ्यां जरत्पन्नगपालिताम् ॥ २ ॥

ta ekada tu rabhasa puranjana-purim nrpa rurudhur bhauma-bhogadhyam jarat-pannaga-palitam

te
they
ekada
once upon a time
tu
then
rabhasa
with great force
puranjana-purim
the city of Puranjana
nrpa
O King
rurudhuh
encircled
bhauma-bhoga-adhyam
full of sense enjoyments
jarat
old
pannaga
by the serpent
palitam
protected.

Once the dangerous soldiers attacked the city of Puranjana with great force. Although the city was full of paraphernalia for sense gratification, it was being protected by the old serpent.