Caitanya-caritāmṛta 4.98
rādhā-kṛṣṇa aiche sadā eka-i svarūpa līlā-rasa āsvādite dhare dui-rūpa
[raadhaa-krishna aiche sadaa eka-i svaroopa leelaa-rasa aasvaadite dhare dui-roopa]
Blended reading (Sanskrit + English inline)
rādhā-kṛṣṇa aiche sadā eka-i svarūpa līlā-rasa āsvādite dhare dui-rūpa
Thus Rādhā and Lord Kṛṣṇa are one, yet They have taken two forms to enjoy the mellows of pastimes.
My note
Source: vedabase.io