Caitanya-caritāmṛta 6.37
ācārya gosāñi caitanyera mukhya aṅga āra eka aṅga tāṅra prabhu nityānanda
[aachaarya gosaani chaitanyera mukhya anga aara eka anga taanra prabhu nityaananda]
Blended reading (Sanskrit + English inline)
ācārya gosāñi caitanyera mukhya aṅga āra eka aṅga tāṅra prabhu nityānanda
Śrī Advaita Ācārya is a principal limb of Lord Caitanya. Another limb of the Lord is Nityānanda Prabhu.
My note
Source: vedabase.io