Śrīmad-Bhāgavatam · Text 2.9.42
Who is speaking and story frame
मायां विविदिषन् विष्णोर्मायेशस्य महामुनि: ।
महाभागवतो राजन् पितरं पर्यतोषयत् ॥ ४२ ॥
māyāṁ vividiṣan viṣṇor
māyeśasya mahā-muniḥ
mahā-bhāgavato rājan
pitaraṁ paryatoṣayat
Nārada very much pleased his father and desired to know all about the energies of Viṣṇu, the master of all energies, for Nārada was the greatest of all sages and greatest of all devotees, O King.
Read Śrīla Prabhupāda's purport on Vedabase.io