Mantra 4

तस्मादु हैवंविद्यद्यपि चण्डालायोच्छिष्टं प्रयच्छेदात्मनि हैवास्य तद्वैश्वानरे हुतं स्यादिति तदेष श्लोकः ॥ ५.२४.४ ॥

In plain words

Therefore, even if one who knows this should give what is left of his food to an outcaste, it would still be an offering made in his own Self, Vaiśvānara. On this there is this verse: