Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 28

Sanskrit:

क्‍वचिद् वनस्पतिक्रोडे गुहायां चाभिवर्षति ।निर्विश्य भगवान् रेमे कन्दमूलफलाशन: ॥ २८ ॥

ITRANS:

kvacid vanaspati-kroḍeguhāyāṁ cābhivarṣatinirviśya bhagavān remekanda-mūla-phalāśanaḥ

Translation:

When it rained, the Lord would sometimes enter a cave or the hollow of a tree to play and to eat roots and fruits.

Purport:

Śrīla Sanātana Gosvāmī explains that during the rainy season bulbs and roots are very tender and palatable, and Lord Kṛṣṇa would eat them along with wild fruits found in the forest. Lord Kṛṣṇa and His young boyfriends would sit in the hollow of a tree or within a cave and enjoy pastimes while waiting for the rain to stop.