Caitanya-caritāmṛta 6.202
nija-rūpa prabhu tāṅre karāila darśana catur-bhuja-rūpa prabhu hā-ilā takhana
[nija-roopa prabhu taanre karaaila darshana chatur-bhuja-roopa prabhu haa-ilaa takhana]
Blended reading (Sanskrit + English inline)
nija-rūpa prabhu tāṅre karāila darśana catur-bhuja-rūpa prabhu hā-ilā takhana
To show him mercy, Śrī Caitanya Mahāprabhu allowed him to see His Viṣṇu form. Thus He immediately assumed four hands.
My note
Source: vedabase.io