Vaishnava Samhita. Shri Krishnadasa Charitam. Vol III Book VII Chp 6 Shloka 1

श्रीसद्गुरुरुवाच

माहात्म्यं कृष्णदासस्य यक्ष्यामि शृणुत प्रियाः |

सर्वं श्रीनाथकैङ्कर्यं यच्छासनपुरस्क्रुतम् ||

Shri Sadguru said

Oh! Dear ones! I am going to tell you now the splendid story of Shri Krishnadasa according to whose command all the different services to Lord Shrinatha are carried on. Listen to me carefully.