While He was contemplating accepting the sannyāsa order, it so happened that Keśava Bhāratī, a sannyāsī of the Māyāvādī school and resident of Katwa (in Bengal), visited Navadvīpa and was invited to dine with the Lord. When Keśava Bhāratī came to His house, the Lord asked him to award Him the sannyāsa order of life. This was a matter of formality. The sannyāsa order is to be accepted from another sannyāsī. Although the Lord was independent in all respects, still, to keep up the formalities of the śāstras, He accepted the sannyāsa order from Keśava Bhāratī, although Keśava Bhāratī was not in the Vaiṣṇava-sampradāya (school).
After consulting with Keśava Bhāratī, the Lord left Navadvīpa for Katwa to formally accept the sannyāsa order of life. He was accompanied by Śrīla Nityānanda Prabhu, Candraśekhara Ācārya, and Mukunda Datta. Those three assisted Him in the details of the ceremony. The incident of the Lord's accepting the sannyāsa order is very elaborately described in the Caitanya-bhāgavata by Śrīla Vṛndāvana dāsa Ṭhākura.