CC Antya 13.125

prabhura ṭhāñi ājñā lañā gelā vṛndāvane
āśraya karilā āsi’ rūpa-sanātane
Word for word: 
prabhura ṭhāñi — from Śrī Caitanya Mahāprabhu; ājñā lañā — taking permission; gelā vṛndāvane — went to Vṛndāvana; āśraya karilā — took shelter; āsi’ — coming; rūpa-sanātane — of Rūpa Gosvāmī and Sanātana Gosvāmī.
Translation: 
Taking permission from Śrī Caitanya Mahāprabhu, Raghunātha Bhaṭṭa then departed for Vṛndāvana. When he arrived there, he put himself under the care of Rūpa and Sanātana Gosvāmīs.