Srimad Bhagavatam Canto 10, Chapter 45, Text 32

SB 10.45.32

yathopasadya tau dantau
 gurau vrttim aninditam
grahayantav upetau sma
 bhaktya devam ivadrtau
 
Translation: 
 
Sandipani thought very highly of these two self-controlled disciples, whom he had obtained so fortuitously. By serving him as devotedly as one would serve the Supreme Lord Himself, They showed others an irreproachable example of how to worship the spiritual master.
Srimad Bhagavatam Canto 10, Chapter 45, Text 30-31
Srimad Bhagavatam Canto 10, Chapter 45, Text 33