Srimad Bhagavatam Canto 07, Chapter 15, Text 01

SB 7.15.1

sri-narada uvaca
karma-nistha dvijah kecit
 tapo-nistha nrpapare
svadhyaye ’nye pravacane
 kecana jñana-yogayoh
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Narada Muni continued: My dear King, some brahmanas are very much attached to fruitive activities, some are attached to austerities and penances, and still others study the Vedic literature, whereas some, although very few, cultivate knowledge and practice different yogas, especially bhakti-yoga.
Srimad Bhagavatam Canto 07, Chapter 15, Text 02