CC Madhya-lila 08.107 - Gita-govinda 3.02
Sri Caitanya-caritamrta
CC Madhya-lila
CC Madhya 8.107, Translation and Purport:
“"Being afflicted by the arrow of Cupid and unhappily regretting His mistreating Śrīmatī Rādhārāṇī, Mādhava, Lord Kṛṣṇa, began to search for Her along the banks of the Yamunā River. When He failed to find Her, He entered the bushes of Vṛndāvana and began to lament."
These two verses are from the Gīta-govinda (3.1–2), written by Jayadeva Gosvāmī.