nārāyaṇo nara-sakho vidhinoditena
vāṇyābhibhāṣya mitayāmṛta-miṣṭayā taṁ
prāha prabho bhagavate karavāma he kim
In this verse the words nārāyaṇo nara-sakhaḥ indicate that Kṛṣṇa is Himself the Supreme Lord, Nārāyaṇa, who appeared as the friend of the sage Nara. In other words, Lord Kṛṣṇa is ṛṣiḥ purāṇaḥ, the original and supreme spiritual master. Nevertheless, following the Vedic injunctions (vidhinoditena) that a kṣatriya should worship the brāhmaṇas, Lord Kṛṣṇa happily worshiped His pure devotee Nārada Muni.