Ascertain (CC & Other Books)
Sri Caitanya-caritamrta
CC Adi-lila
CC Adi 3.34, Purport:
According to the regulation of the disciplic succession, one who wishes to enter the renounced order in Śaṅkara's sect must first be trained as a brahmacārī under a bona fide sannyāsī, The brahmacārī’s name is ascertained according to the group to which the sannyāsī belongs. Lord Caitanya accepted sannyāsa from Keśava Bhāratī. When He first approached Keśava Bhāratī, He was accepted as a brahmacārī with the name Śrī Kṛṣṇa Caitanya Brahmacārī. After He took sannyāsa, He preferred to keep the name Kṛṣṇa Caitanya.