The following pastime is found in the Sri Caitanya-caritamrita, but is more elaborately described in the Sri Caitanya-bhagavata, Adi-khanda, Chapter 3 as follows:
One saintly brahmana who was most virtuous was touring the places of pilgrimage in order to obtain Sri Krishna. He used to worship Gopala by chanting the six-syllable Gopala mantra, and without having offered bhoga to Gopala he would eat nothing. Hanging from his neck like a brilliant jewel was his Bala Gopala Salagrama. By hi