athāpluto 'mbhasy amale yathā-vidhi
kriyā-kalāpaḿ paridhāya vāsasī
cakāra sandhyopagamādi sattamo
hutānalo brahma jajāpa vāg-yataḥ
atha -- then; aplutah -- having bathed; ambhasi -- in water; amale -- pure; yatha-vidhi -- according to Vedic rules; kriya -- of rituals; kalapam -- the entire sequence; paridhaya -- after dressing; vasasi -- in lower and upper garments; cakara -- He executed; sandhya-upagama -- worship at dawn; adi -- and so on; sat-tamah -- the most saintly of personalities; huta -- having offered oblations; analah -- to the sacred fire; brahma -- the mantra of the Vedas (namely Gayatri); jajapa -- He chanted quietly; vak -- speech; yatah -- controlling.
Sridhara Svami points out that since Lord Krishna was in the disciplic succession from Kanva Muni, He offered oblations to the fire before sunrise. Then He chanted the Gayatri mantra.