Srimad Bhagavatam Canto 10, Chapter 64, Text 40

SB 10.64.40

na me brahma-dhanam bhuyad
 yad grdhvalpayuso narah
parajitas cyuta rajyad
 bhavanty udvejino ’hayah
 
Translation: 
 
I do not desire brahmanas’ wealth. Those who lust after it become short-lived and are defeated. They lose their kingdoms and become snakes, who trouble others.
Srimad Bhagavatam Canto 10, Chapter 64, Text 39
Srimad Bhagavatam Canto 10, Chapter 64, Text 41