Mahabharata 3.83.27

निदर्शनं च प्रत्यक्षं ब्राह्मणानां नराधिपगायत्रीं पठते यस्तु योनिसंकरजस्तथागाथा वा गीतिका वापि तस्य संपद्यते नृप

nidarśanaṃ ca pratyakṣaṃ brāhmaṇānāṃ narādhipagāyatrīṃ paṭhate yastu yonisaṃkarajastathāgāthā vā gītikā vāpi tasya saṃpadyate nṛpa

Our plain-language meaning of this verse is waiting for scholar review.