One verse

Srimad Bhagavatam 5.7.10

5.7.10

यत्राश्रमपदान्युभयतोनाभिभिर्दृषच्चक्रैश्चक्रनदी नाम सरित्प्रवरा सर्वत: पवित्रीकरोति ॥ १० ॥

yatrasrama-padany ubhayato nabhibhir drsac-cakrais cakra-nadi nama sarit-pravara sarvatah pavitri-karoti.

yatra
where
asrama-padani
all hermitages
ubhayatah
both on top and below
nabhibhih
like the symbolic mark of a navel
drsat
visible
cakraih
with the circles
cakra-nadi
the Cakra-nadi River (generally known as the Gandaki)
nama
of the name
sarit-pravara
the most important river of all
sarvatah
everywhere
pavitri-karoti
sanctifies.

In Pulaha-asrama is the Gandaki River, which is the best of all rivers. The salagrama-sila, the marble pebbles, purify all those places. On each and every marble pebble, up and down, circles like navels are visible.