One verse

Srimad Bhagavatam 4.30.3

4.30.3

मैत्रेय उवाच प्रचेतसोऽन्तरुदधौ पितुरादेशकारिण: । जपयज्ञेन तपसा पुरञ्जनमतोषयन् ॥ ३ ॥

maitreya uvaca pracetaso ’ntar udadhau pitur adesa-karinah japa-yajnena tapasa puranjanam atosayan

maitreyah uvaca
Maitreya said
pracetasah
the Pracetas
antah
within
udadhau
the sea
pituh
of their father
adesa-karinah
the order carriers
japa-yajnena
by chanting mantras
tapasa
under severe austerities
puram-janam
the Supreme Personality of Godhead
atosayan
satisfied.

The great sage Maitreya said: The sons of King Pracinabarhi, known as the Pracetas, underwent severe austerities within the seawater to carry out the order of their father. By chanting and repeating the mantras given by Lord Siva, they were able to satisfy Lord Visnu, the Supreme Personality of Godhead.