Caitanya-caritāmṛta 2.61
avatārī nārāyaṇa, kṛṣṇa avatāra teṅha catur-bhuja, iṅha manuṣya-ākāra
[avataaree naaraayana, krishna avataara tenha chatur-bhuja, inha manushya-aakaara]
Blended reading (Sanskrit + English inline)
avatārī nārāyaṇa, kṛṣṇa avatāra teṅha catur-bhuja, iṅha manuṣya-ākāra
Because Nārāyaṇa has four hands whereas Kṛṣṇa looks just like a man, they say that Nārāyaṇa is the original God whereas Kṛṣṇa is but an incarnation.
Purport
Some scholars argue that because Nārāyaṇa has four hands whereas Śrī Kṛṣṇa has only two, Nārāyaṇa is the original Personality of Godhead and Kṛṣṇa is His incarnation. Such unintelligent scholars do not understand the features of the Absolute.
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io