Caitanya-caritāmṛta 13.88
loka nivārite haila tina maṇḍala prathama-maṇḍale nityānanda mahā-bala
[loka nivaarite haila tina mandala prathama-mandale nityaananda mahaa-bala]
Blended reading (Sanskrit + English inline)
loka nivārite haila tina maṇḍala prathama-maṇḍale nityānanda mahā-bala
Just to check the crowds from coming too near the Lord, the devotees formed three circles. The first circle was guided by Nityānanda Prabhu, who is Balarāma Himself, the possessor of great strength.
My note
Source: vedabase.io