Mahabharata 13.83.9

कस्माच्च पावनं श्रेष्ठं भूमेर्गोभ्यश्च काञ्चनम्परमं दक्षिणार्थे च तद्ब्रवीहि पितामह

kasmācca pāvanaṃ śreṣṭhaṃ bhūmergobhyaśca kāñcanamparamaṃ dakṣiṇārthe ca tadbravīhi pitāmaha

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