CC Ādi 11.55
caitanya-līlāte vyāsa — vṛndāvana dāsa
Śrīla Vṛndāvana dāsa Ṭhākura was an incarnation of Vedavyāsa and also a friendly cowherd boy named Kusumāpīḍa in kṛṣṇa-līlā. In other words, the author of Śrī Caitanya-bhāgavata, Śrīla Vṛndāvana dāsa Ṭhākura, the son of Śrīvāsa Ṭhākura’s niece Nārāyaṇī, was a combined incarnation of Vedavyāsa and the cowherd boy Kusumāpīḍa. There is a descriptive statement by Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura in his commentary on Śrī Caitanya-bhāgavata giving the biographical details of the life of Vṛndāvana dāsa Ṭhākura.