CC Ādi 14.39
viṣṇu-naivedya khāila ekādaśī-dine
The Caitanya-bhāgavata, Ādi-khaṇḍa, chapter six, fully describes the Lord’s accepting viṣṇu-prasādam on the Ekādaśī day at the house of Jagadīśa and Hiraṇya. Regular prasādam is offered to Lord Viṣṇu on Ekādaśī because although fasting is recommended for devotees on Ekādaśī, it is not recommended for Lord Viṣṇu. Once on Ekādaśī in the house of Jagadīśa and Hiraṇya Paṇḍita there were arrangements for preparing special prasādam for Lord Viṣṇu, and Lord Caitanya Mahāprabhu asked His father to go there to ask for the viṣṇu-prasādam because He was feeling sick. The house of Jagadīśa and Hiraṇya Paṇḍita was situated about two miles from the house of Jagannātha Miśra. Therefore when Jagannātha Miśra, on the request of Śrī Caitanya Mahāprabhu, came to ask Jagadīśa and Hiraṇya for the prasādam, they were a little astonished. How could the boy understand that special prasādam was being prepared for Lord Viṣṇu? They immediately concluded that Nimāi must have supernatural mystic power. Otherwise how could He understand that they were preparing special prasādam? Therefore they immediately sent the food to Lord Caitanya Mahāprabhu through His father, Jagannātha Miśra. Nimāi was feeling sick, but immediately after eating the viṣṇu-prasādam He was cured, and He also distributed the prasādam among His playmates.