Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 37
Sanskrit:
तथापि न प्रतिब्रूयां गुरुभि: प्रार्थितं कियत् ।भवतां प्रार्थितं सर्वं प्राणैरर्थैश्च साधये ॥ ३७ ॥
ITRANS:
tathāpi na pratibrūyāṁgurubhiḥ prārthitaṁ kiyatbhavatāṁ prārthitaṁ sarvaṁprāṇair arthaiś ca sādhaye
Translation:
All of you are my superiors. Therefore although accepting priesthood is sometimes reproachable, I cannot refuse even a small request from you. I agree to be your priest. I shall fulfill your request by dedicating my life and possessions.