One verse

Srimad Bhagavatam 8.24.10

8.24.10

तत्र राजऋषि: कश्चिन्नाम्ना सत्यव्रतो महान् । नारायणपरोऽतपत् तप: स सलिलाशन: ॥ १० ॥

tatra raja-rsih kascin namna satyavrato mahan narayana-paro ’tapat tapah sa salilasanah

tatra
in that connection
raja-rsih
a king equally qualified as a great saintly person
kascit
someone
namna
by the name
satyavratah
Satyavrata
mahan
a great personality
narayana-parah
a great devotee of Lord Narayana, the Supreme Personality of Godhead
atapat
performed austerities
tapah
penances
sah
he
salila-asanah
only drinking water.

During the Caksusa-manvantara there was a great king named Satyavrata who was a great devotee of the Supreme Personality of Godhead. Satyavrata performed austerities by subsisting only on water.