Mahabharata 12.291.28
एषा तत्त्वचतुर्विंशा सर्वाकृतिषु वर्ततेयां ज्ञात्वा नाभिशोचन्ति ब्राह्मणास्तत्त्वदर्शिनः
eṣā tattvacaturviṃśā sarvākṛtiṣu vartateyāṃ jñātvā nābhiśocanti brāhmaṇāstattvadarśinaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book