Deer (CC and Other Books)
Sri Caitanya-caritamrta
CC Adi-lila
CC Adi 17.293, Translation:
"Prior to the rāsa dance, Lord Kṛṣṇa hid Himself in a grove just to have fun. When the gopīs came, their eyes resembling those of deer, by His sharp intelligence He exhibited His beautiful four-armed form to hide Himself. But when Śrīmatī Rādhārāṇī came there, Kṛṣṇa could not maintain His four arms in Her presence. This is the wonderful glory of Her love."