Caitanya-caritāmṛta 5.82
ādyāvatāra, mahā-puruṣa, bhagavān sarva-avatāra-bīja, sarvāśraya-dhāma
[aadyaavataara, mahaa-purusha, bhagavaan sarva-avataara-beeja, sarvaashraya-dhaama]
Blended reading (Sanskrit + English inline)
ādyāvatāra, mahā-puruṣa, bhagavān sarva-avatāra-bīja, sarvāśraya-dhāma
That Mahā-puruṣa is identical with the Personality of Godhead. He is the original incarnation, the seed of all others, and the shelter of everything.
My note
Source: vedabase.io