Śrīmad-Bhāgavatam · Text 3.8.25
Who is speaking and story frame
आयामतो विस्तरत: स्वमान-
देहेन लोकत्रयसंग्रहेण ।
विचित्रदिव्याभरणांशुकानां
कृतश्रियापाश्रितवेषदेहम् ॥ २५ ॥
āyāmato vistarataḥ sva-māna-
dehena loka-traya-saṅgraheṇa
vicitra-divyābharaṇāṁśukānāṁ
kṛta-śriyāpāśrita-veṣa-deham
His transcendental body, unlimited in length and breadth, occupied the three planetary systems, upper, middle and lower. His body was self-illuminated by unparalleled dress and variegatedness and was properly ornamented.
Read Śrīla Prabhupāda's purport on Vedabase.io