Caitanya-caritāmṛta 9.106
tabe mahāprabhu tāṅre karāila śikṣaṇa ei bāt kāhāṅ nā kariha prakāśana
[tabe mahaaprabhu taanre karaaila shikshana ei baat kaahaan naa kariha prakaashana]
Blended reading (Sanskrit + English inline)
tabe mahāprabhu tāṅre karāila śikṣaṇa ei bāt kāhāṅ nā kariha prakāśana
Śrī Caitanya Mahāprabhu then taught the brāhmaṇa very thoroughly and requested him not to disclose the fact that He was Lord Kṛṣṇa Himself.
My note
Source: vedabase.io