Caitanya-caritāmṛta 20.262
etau hi viśvasya ca bīja-yonī rāmo mukundaḥ puruṣaḥ pradhānam anvīya bhūteṣu vilakṣaṇasya jñānasya ceśāta imau purāṇau
[etau hi vishvasya cha beeja-yonee raamo mukundah purushah pradhaanam anveeya bhooteshu vilakshanasya jnaanasya cheshaata imau puraanau]
Blended reading (Sanskrit + English inline)
etau hi viśvasya ca bīja-yonī rāmo mukundaḥ puruṣaḥ pradhānam anvīya bhūteṣu vilakṣaṇasya jñānasya ceśāta imau purāṇau
“ ‘Balarāma and Kṛṣṇa are the original efficient and material causes of the material world. As Mahā-Viṣṇu and the material energy, They enter into the material elements and create the diversities by multi-energies. Thus They are the cause of all causes.’
Purport
This verse is quoted from Śrīmad-Bhāgavatam (10.46.31).
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io