Srimad Bhagavatam Canto 10, Chapter 23, Text 39

 SB 10.23.39

drstva strinam bhagavati
 krsne bhaktim alaukikim
atmanam ca taya hinam
 anutapta vyagarhayan
 
Translation: 
 
Taking note of their wives’ pure, transcendental devotion for Lord Krsna, the Supreme Personality of Godhead, and seeing their own lack of devotion, the brahmanas felt most sorrowful and began to condemn themselves.
Srimad Bhagavatam Canto 10, Chapter 23, Text 38
Srimad Bhagavatam Canto 10, Chapter 23, Text 40