The Brahma-samhita and Krsna-karnamrta were two books that Sri Caitanya Mahaprabhu considered to be most valuable jewels. Therefore He took them with Him on His return trip

Expressions researched:
"The Brahma-samhita and Krsna-karnamrta were two books that Sri Caitanya Mahaprabhu considered to be most valuable jewels. Therefore He took them with Him on His return trip"

CC Madhya-lila

CC Madhya 9.309, Translation:

The Brahma-saṁhitā and Kṛṣṇa-karṇāmṛta were two books that Śrī Caitanya Mahāprabhu considered to be most valuable jewels. Therefore He took them with Him on His return trip.