One verse

Srimad Bhagavatam 4.28.35-36

4.28.35-36

तत्र चन्द्रवसा नाम ताम्रपर्णी वटोदका । तत्पुण्यसलिलैर्नित्यमुभयत्रात्मनो मृजन् ॥ ३५ ॥ कन्दाष्टिभिर्मूलफलै: पुष्पपर्णैस्तृणोदकै: । वर्तमान: शनैर्गात्रकर्शनं तप आस्थित: ॥ ३६ ॥

tatra candravasa nama tamraparni vatodaka tat-punya-salilair nityam ubhayatratmano mrjan kandastibhir mula-phalaih puspa-parnais trnodakaih vartamanah sanair gatra- karsanam tapa asthitah

tatra
there
candravasa
the Candravasa River
nama
named
tamraparni
the Tamraparni River
vatodaka
the Vatodaka River
tat
of those rivers
punya
pious
salilaih
with the waters
nityam
daily
ubhayatra
in both ways
atmanah
of himself
mrjan
washing
kanda
bulbs
astibhih
and by seeds
mula
roots
phalaih
and by fruits
puspa
flowers
parnaih
and by leaves
trna
grass
udakaih
and by water
vartamanah
subsisting
sanaih
gradually
gatra
his body
karsanam
rendering thin
tapah
austerity
asthitah
he underwent

In the province of Kulacala, there were rivers named Candravasa, Tamraparni and Vatodaka. King Malayadhvaja used to go to those pious rivers regularly and take his bath there. Thus he purified himself externally and internally. He took his bath and ate bulbs, seeds, leaves, flowers, roots, fruits and grasses and drank water. In this way he underwent severe austerities. Eventually he became very skinny.