Caitanya-caritāmṛta 20.161
paramātmā yeṅho, teṅho kṛṣṇera eka aṁśa ātmāra ‘ātmā’ haya kṛṣṇa sarva-avataṁsa
[paramaatmaa yenho, tenho krishnera eka amsha aatmaara ‘aatmaa’ haya krishna sarva-avatamsa]
Blended reading (Sanskrit + English inline)
paramātmā yeṅho, teṅho kṛṣṇera eka aṁśa ātmāra ‘ātmā’ haya kṛṣṇa sarva-avataṁsa
“The Paramātmā, the Supersoul feature, is a plenary portion of the Supreme Personality of Godhead, who is the original soul of all living entities. Kṛṣṇa is the source of the Paramātmā.
My note
Source: vedabase.io