Srimad Bhagavatam Canto 04, Chapter 06, Text 37

SB 4.6.37

upavistam darbhamayyam
brsyam brahma sanatanam
naradaya pravocantam
prcchate srnvatam satam
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
He was seated on a straw mattress and speaking to all present, including the great sage Narada, to whom he specifically spoke about the Absolute Truth.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The lord was sitting on a mattress of straw because such a sitting place is accepted by persons who are practicing austerities to gain understanding of the Absolute Truth. In this verse it is specifically mentioned that he was speaking to the great sage Narada, a celebrated devotee. Narada was asking Lord Siva about devotional service, and Siva, being the topmost Vaisnava, was instructing him. In other words, Lord Siva and Narada were discussing the knowledge of the Veda, but it is to be understood that the subject matter was devotional service. Another point in this connection is that Lord Siva is the supreme instructor and the great sage Narada is the supreme audience. Therefore the supreme subject matter of Vedic knowledge is bhakti, or devotional service.

 

Srimad Bhagavatam Canto 04, Chapter 06, Text 36
Srimad Bhagavatam Canto 04, Chapter 06, Text 38