Vaishnava Samhita. Shri Vyasadasa Charitam I. Vol II Book VI Chp 2 Shloka 14

गोपीभावेन संसिद्धो व्यासदासो महामनाः 

जगाम देवदेवस्य द्रष्टुं रासमहोत्सवम् 

Once, the large-hearted Shri Vyasadeva, who had experienced the depth of Gopi Prem, came to participate in the grand festival of Shri Krishna's Raasa