He (Sri Caitanya Mahaprabhu) Himself, Krsna, and Nityananda Prabhu is immediate expansion of His personal self - Advaita Prabhu is incarnation of Krsna, or Visnu, Mahavisnu, three

Expressions researched:
"He Himself, Kṛṣṇa, and Nityānanda Prabhu is immediate expansion of His personal self—Advaita Prabhu is incarnation of Kṛṣṇa, or Viṣṇu, Mahāviṣṇu, three"

Lectures

Sri Caitanya-caritamrta Lectures

Nityānanda Prabhu is the immediate expansion of Śrī Caitanya Mahāprabhu. Śrī Caitanya Mahāprabhu appeared here at Māyāpur, this very place where you are now sitting, with all these five features: Nityānanda Prabhu, Śrī Advaita Prabhu and Gadādhara Prabhu, Śrīnivāsa Prabhu. So He Himself, Kṛṣṇa, and Nityānanda Prabhu is immediate expansion of His personal self—Advaita Prabhu is incarnation of Kṛṣṇa, or Viṣṇu, Mahāviṣṇu, three; and Gadādhara Prabhu is the expansion of spiritual energy; and Śrīnivāsa Prabhu is the expansion of His marginal potency, marginal energy, jīva-tattva.

740303 - Lecture CC Adi 07.03 - Mayapur

Nityānanda Prabhu is the immediate expansion of Śrī Caitanya Mahāprabhu. Śrī Caitanya Mahāprabhu appeared here at Māyāpur, this very place where you are now sitting, with all these five features: Nityānanda Prabhu, Śrī Advaita Prabhu and Gadādhara Prabhu, Śrīnivāsa Prabhu. So He Himself, Kṛṣṇa, and Nityānanda Prabhu is immediate expansion of His personal self—Advaita Prabhu is incarnation of Kṛṣṇa, or Viṣṇu, Mahāviṣṇu, three; and Gadādhara Prabhu is the expansion of spiritual energy; and Śrīnivāsa Prabhu is the expansion of His marginal potency, marginal energy, jīva-tattva. Jīva-tattva, śakti-tattva, prakāśa-tattva, and avatāra-tattva, and He Himself. This pañca-tattva. This pañca-tattva will be explained in this chapter. That is the proposal of the author. Guru-tattva kahiyāchi ebe pāñcera vicāra (CC Adi 7.3). Consideration of the five. So although the Absolute Truth is one, He expands in His various features. That has been divided in Caitanya Mahāprabhu's practical exposition of tattva-vicāra, in six: five personal, and the guru is also representative. Sākṣād-dharitvena samasta-śāstrair. Guru is also expansion of Hari for the benefit of the conditioned soul. For the benefit of the conditioned soul, He is within everyone's heart. Īśvaraḥ sarva-bhūtānāṁ hṛd-deśe 'rjuna tiṣṭhati (BG 18.61). So He's trying to teach us from within, and He sends His representative for preaching without.