Devotee: On ekādaśī, we can offer the Deity grains?
Prabhupāda: Oh yes. But not guru. Ekādaśī observed by jīva-tattva, not by Viṣṇu-tattva. We are fasting for clearing our material disease, but Rādhā-Kṛṣṇa, Caitanya Mahāprabhu... Caitanya Mahāprabhu also may not be offered grains because He is playing the part of a devotee. Only Rādhā-Kṛṣṇa, Jagannātha can be offered grains. Otherwise, Guru-Gaurāṅga, no. And the prasādam should not be taken by anyone. It should be kept for next day.
Room Conversations -- April 22, 1972, Japan