Bṛhad-bhāgavatāmṛta Part 2 Chapter 3 Text 70

abodhayaṁ mano ’nena
maheśenaiva sā khalu
līlā-viśeṣa-vaicitrī
kṛtā mūrti-viśeṣataḥTRANSLATION
I told my mind that it is Lord Śiva himself who performs these wonderfully varied pastimes in the special form of Lord Gopāla.