He is said to live upon sacrificial residue who eats only what remains after feeding the gods, the Pitris, servants and guests.
देवताभ्यः पितृभ्यश्च भृत्येभ्योऽतिथिभिः सह। अवशिष्टं तु योऽश्नाति तमाहुर्विघसाशिनम्॥