Caitanya-caritāmṛta 4.194
ei śloka kahiyāchena rādhā-ṭhākurāṇī tāṅra kṛpāya sphuriyāche mādhavendra-vāṇī
[ei shloka kahiyaachena raadhaa-thaakuraanee taanra kripaaya sphuriyaache maadhavendra-vaanee]
Blended reading (Sanskrit + English inline)
ei śloka kahiyāchena rādhā-ṭhākurāṇī tāṅra kṛpāya sphuriyāche mādhavendra-vāṇī
Actually this verse was spoken by Śrīmatī Rādhārāṇī Herself, and by Her mercy only was it manifest in the words of Mādhavendra Purī.
My note
Source: vedabase.io