Caitanya-caritāmṛta 4.224
‘ujjvala-nīlamaṇi’-nāma grantha kaila āra rādhā-kṛṣṇa-līlā-rasa tāhāṅ pāiye pāra
[‘ujjvala-neelamani’-naama grantha kaila aara raadhaa-krishna-leelaa-rasa taahaan paaiye paara]
Blended reading (Sanskrit + English inline)
‘ujjvala-nīlamaṇi’-nāma grantha kaila āra rādhā-kṛṣṇa-līlā-rasa tāhāṅ pāiye pāra
Śrīla Rūpa Gosvāmī also compiled the book named Ujjvala-nīlamaṇi, from which one can understand, to the fullest limits, the loving affairs of Śrī Śrī Rādhā and Kṛṣṇa.
My note
Source: vedabase.io