Caitanya-caritāmṛta 20.64
sanātana kahe, — ‘kṛṣṇa āmi nāhi jāni āmāra uddhāra-hetu tomāra kṛpā māni’
[sanaatana kahe, — ‘krishna aami naahi jaani aamaara uddhaara-hetu tomaara kripaa maani’]
Blended reading (Sanskrit + English inline)
sanātana kahe, — ‘kṛṣṇa āmi nāhi jāni āmāra uddhāra-hetu tomāra kṛpā māni’
Sanātana replied, “I do not know who Kṛṣṇa is. As far as I am concerned, I have been released from prison only by Your mercy.”
My note
Source: vedabase.io