The Caitanya-bhagavata, Adi-lila, Chapter Six, fully describes the Lord's accepting visnu-prasada on the Ekadasi day at the house of Jagadisa and Hiranya. Regular prasada is offered to Lord Visnu on Ekadasi because, while fasting is recommended for devotees on Ekadasi, it is not recommended for Lord Visnu. Once on Ekadasi in the house of Jagadisa and Hiranya Pandita there were arrangements for preparing special prasada for Lord Visnu, and Lord Caitanya Mahaprabhu asked His father to go there to ask for the visnu-prasada because He was feeling sick. The house of Jagadisa and Hiranya Pandita was situated about two miles from the house of Jagannatha Misra. Therefore when Jagannatha Misra, on the request of Sri Caitanya Mahaprabhu, came to ask Jagadisa and Hiranya for the prasada, they were a little astonished. How could the boy understand that special prasada was being prepared for Lord Visnu? They immediately concluded that the boy Nimai must have supernatural mystic power. Otherwise how could He understand that they were preparing special prasada? Therefore they immediately sent the food to Lord Caitanya Mahaprabhu through His father, Jagannatha Misra. Nimai was feeling sick, but immediately after eating the visnu-prasada He was cured, and He also distributed the prasada among His playmates.