CC Madhya 9.329

dui jane kṛṣṇa-kathā kahe rātri-dine
parama-ānande gela pāṅca-sāta dine
Word for word: 
dui jane — both of them; kṛṣṇa-kathā — topics of Kṛṣṇa; kahe — speak; rātri-dine — day and night; parama-ānande — in great happiness; gela — passed; pāṅca-sāta dine — five to seven days.
Translation: 
Rāmānanda Rāya and Śrī Caitanya Mahāprabhu discussed Kṛṣṇa day and night, and thus they passed from five to seven days in great happiness.