CC Antya 6.279

viṣayīra anna haya ‘rājasa’ nimantraṇa
dātā, bhoktā — duṅhāra malina haya mana
Word for word: 
viṣayīra — offered by materialistic men; anna — food; haya — is; rājasa — in the mode of passion; nimantraṇa — invitation; dātā — the person who offers; bhoktā — the person who accepts such an offering; duṅhāra — of both of them; malina — contaminated; haya mana — the mind becomes.
Translation: 
“When one accepts an invitation from a person contaminated by the material mode of passion, the person who offers the food and the person who accepts it are both mentally contaminated.
Purport: 

Śrīla Bhaktivinoda Ṭhākura says that there are three varieties of invitations — those in the mode of goodness, those in passion and those in ignorance. An invitation accepted from a pure devotee is in the mode of goodness, an invitation accepted from a person who is pious but materially attached is in the mode of passion, and an invitation accepted from a person who is materially very sinful is in the mode of ignorance.