CC Antya 18.121

śrī-rūpa-raghunātha-pade yāra āśa
caitanya-caritāmṛta kahe kṛṣṇadāsa
Word for word: 
śrī-rūpa — Śrīla Rūpa Gosvāmī; raghunātha — Śrīla Raghunātha dāsa Gosvāmī; pade — at the lotus feet; yāra — whose; āśa — expectation; caitanya-caritāmṛta — the book named Caitanya-caritāmṛta; kahe — describes; kṛṣṇadāsa — Śrīla Kṛṣṇadāsa Kavirāja Gosvāmī.
Translation: 
Praying at the lotus feet of Śrī Rūpa and Śrī Raghunātha, always desiring their mercy, I, Kṛṣṇadāsa, narrate Śrī Caitanya-caritāmṛta, following in their footsteps.
Purport: 

Thus end the Bhaktivedanta purports to Śrī Caitanya-caritāmṛta, Antya-līlā, eighteenth chapter, describing Lord Śrī Caitanya Mahāprabhu’s falling into the sea.