CC Madhya 8.49
rāmānande kahe prabhu īṣat hāsiyā
Lord Śrī Caitanya Mahāprabhu accepted the invitation, knowing the brāhmaṇa to be a devotee, and slightly smiling, He spoke as follows to Rāmānanda Rāya.
Śrī Caitanya Mahāprabhu accepted the invitation of the Vaiṣṇava brāhmaṇa. Even though one is a brāhmaṇa strictly following all the rules and regulations of brahminical culture, if he is not a devotee, a follower of Śrī Caitanya Mahāprabhu, one should not accept his invitation. At the present moment people have become so degraded that they do not even follow the Vedic principles, to say nothing of Vaiṣṇava principles. They eat anything and everything — whatever they like — and therefore the members of the Kṛṣṇa consciousness movement should be very cautious about accepting invitations.