CC Madhya 19.169
pañcarātre, bhāgavate ei lakṣaṇa kaya
One has to develop his devotional service under the directions of a pure devotee, the spiritual master, and in accordance with the Vedic directions given in the Pañcarātra and Bhāgavata systems. The Pañcarātra system includes methods of temple worship, and the Bhāgavata system includes the spreading of Kṛṣṇa conscious philosophy through the recitation of Śrīmad-Bhāgavatam and the discussion of philosophy with people who are interested. Through discussion, one can create an interest and understanding of the Pañcarātra and Bhāgavata systems.