One day, after finishing his morning duties - evacuating, urinating and bathing - Maharaja Bharata sat down on the bank of the River Gandaki for a few minutes and began chanting his mantra, beginning with omkara

Expressions researched:
"Maharaja Bharata sat down on the bank of the River Gandaki for a few minutes and began chanting his mantra, beginning with omkara" |"evacuating, urinating and bathing" |"one day, after finishing his morning duties"

SB Canto 5

My dear King, one day, after finishing his morning duties—evacuating, urinating and bathing—Mahārāja Bharata sat down on the bank of the River Gaṇḍakī for a few minutes and began chanting his mantra, beginning with oṁkāra.

SB 5.8.1, Translation:

Śrī Śukadeva Gosvāmī continued: My dear King, one day, after finishing his morning duties—evacuating, urinating and bathing—Mahārāja Bharata sat down on the bank of the River Gaṇḍakī for a few minutes and began chanting his mantra, beginning with oṁkāra.