CC Antya 7.65

advaita, nityānanda-rāya — pārśve dui-jana
madhye mahāprabhu vasilā, āge-pāche bhakta-gaṇa
Synonyms: 
advaita — Advaita Ācārya; nityānanda-rāya — Lord Nityānanda; pārśve — on the sides; dui-jana — two personalities; madhye — in the middle; mahāprabhu vasilā — Śrī Caitanya Mahāprabhu sat down; āge — in front; pāche — behind; bhakta-gaṇa — all the devotees.
Translation: 
Śrī Caitanya Mahāprabhu sat in the midst of the devotees. Advaita Ācārya and Lord Nityānanda each sat on one side of the Lord. The other devotees sat in front of the Lord and behind Him.