Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 38
Sanskrit:
एतैर्मन्त्रैर्हृषीकेशमावाहनपुरस्कृतम् ।अर्चयेच्छ्रद्धया युक्त: पाद्योपस्पर्शनादिभि: ॥ ३८ ॥
ITRANS:
etair mantrair hṛṣīkeśamāvāhana-puraskṛtamarcayec chraddhayā yuktaḥpādyopasparśanādibhiḥ
Translation:
Kaśyapa Muni continued: By chanting all these mantras, welcoming the Supreme Personality of Godhead with faith and devotion, and offering Him items of worship [such as pādya and arghya], one should worship Keśava, Hṛṣīkeśa, Kṛṣṇa, the Supreme Personality of Godhead.