pariniṣṭhito 'pi nairguṇye
uttamaḥśloka-līlayā
gṛhīta-cetā rājarṣe
ākhyānaṁ yad adhītavān
pariniṣṭhitaḥ - situated; api - although; nairguṇye - in the transcendental position, freed from the material modes of nature; uttamaḥ-śloka-līlayā - by the pastimes of the Supreme Personality of Godhead, Uttamaḥśloka; gṛhīta-cetāḥ - the mind became fully taken over; rājā-ṛṣe - O great King; ākhyānam - the narration; yat - which; adhītavān - studied.
This is a quotation from Śrīmad-Bhāgavatam (2.1.9).