Srimad Bhagavatam Canto 11, Chapter 25, Text 34

SB 11.25.34

nihsango mam bhajed vidvan
 apramatto jitendriyah
rajas tamas cabhijayet
 sattva-samsevaya munih
 
Translation: 
 
A wise sage, free from all material association and unbewildered, should subdue his senses and worship Me. He should conquer the modes of passion and ignorance by engaging himself only with things in the mode of goodness.
Srimad Bhagavatam Canto 11, Chapter 25, Text 33
Srimad Bhagavatam Canto 11, Chapter 25, Text 35