CC Madhya 19.11

rūpa-gosāñi nīlācale pāṭhāila dui-jana
prabhu yabe vṛndāvana karena gamana
Word for word: 
rūpa-gosāñi — Rūpa Gosvāmī; nīlācale — to Jagannātha Purī; pāṭhāila — sent; dui-jana — two persons; prabhu — Śrī Caitanya Mahāprabhu; yabe — when; vṛndāvana — to Vṛndāvana; karena — makes; gamana — departure.
Translation: 
Śrī Rūpa Gosvāmī sent two people to Jagannātha Purī to find out when Śrī Caitanya Mahāprabhu would depart for Vṛndāvana.