Caitanya-caritāmṛta 4.118
harir eṣa na ced avātariṣyan mathurāyāṁ madhurākṣi rādhikā ca abhaviṣyad iyaṁ vṛthā visṛṣṭir makarāṅkas tu viśeṣatas tadātra
[harir esha na ched avaatarishyan mathuraayaam madhuraakshi raadhikaa cha abhavishyad iyam vrithaa visrishtir makaraankas tu visheshatas tadaatra]
Blended reading (Sanskrit + English inline)
harir eṣa na ced avātariṣyan mathurāyāṁ madhurākṣi rādhikā ca abhaviṣyad iyaṁ vṛthā visṛṣṭir makarāṅkas tu viśeṣatas tadātra
“O Paurṇamāsī, if Lord Hari had not descended in Mathurā with Śrīmatī Rādhārāṇī, this entire creation — and especially Cupid, the demigod of love — would have been useless.”
Purport
This verse is spoken by Śrī Vṛndā-devī in the Vidagdha-mādhava (7.3) of Śrīla Rūpa Gosvāmī.
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io