Śrīmad-Bhāgavatam · Text 1.7.3
Who is speaking and story frame
तस्मिन् स्व आश्रमे व्यासो बदरीषण्डमण्डिते ।
आसीनोऽप उपस्पृश्य प्रणिदध्यौ मन: स्वयम् ॥ ३ ॥
tasmin sva āśrame vyāso
badarī-ṣaṇḍa-maṇḍite
āsīno ’pa upaspṛśya
praṇidadhyau manaḥ svayam
In that place, Śrīla Vyāsadeva, in his own āśrama, which was surrounded by berry trees, sat down to meditate after touching water for purification.
Read Śrīla Prabhupāda's purport on Vedabase.io