SB 4.13.3
manye maha-bhagavatam
naradam deva-darsanam
yena proktah kriya-yogah
paricarya-vidhir hareh
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Vidura continued: I know that the great sage Narada is the greatest of all devotees. He has compiled the pañcaratrika procedure of devotional service and has directly met the Supreme Personality of Godhead.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
There are two different ways of approaching the Supreme Lord. One is called bhagavata-marga, or the way of Srimad-Bhagavatam, and the other is called pañcaratrika-vidhi. Pañcaratrika-vidhi is the method of temple worship, and bhagavata-vidhi is the system of nine processes which begin with hearing and chanting. The Krsna conscious movement accepts both processes simultaneously and thus enables one to make steady progress on the path of realization of the Supreme Personality of Godhead. This pañcaratrika procedure was first introduced by the great sage Narada, as referred to here by Vidura.