CC Antya 1.214

cāri māsa rahi’ saba prabhura bhakta-gaṇa
gosāñi vidāya dilā, gauḍe karilā gamana
Word for word: 
cāri māsa — four months; rahi’ — staying; saba — all; prabhura — of Śrī Caitanya Mahāprabhu; bhakta-gaṇa — the devotees; gosāñi — Caitanya Mahāprabhu; vidāya dilā — bade farewell; gauḍe — to Bengal; karilā gamana — they returned.
Translation: 
All the devotees of Śrī Caitanya Mahāprabhu thus spent four months with Him. Then the Lord bade them farewell, and they returned to Bengal.