Mahabharata 14.90.20
कृत्वा प्रवर्ग्यं धर्मज्ञा यथावद्द्विजसत्तमाःचक्रुस्ते विधिवद्राजंस्तथैवाभिषवं द्विजाः
kṛtvā pravargyaṃ dharmajñā yathāvaddvijasattamāḥcakruste vidhivadrājaṃstathaivābhiṣavaṃ dvijāḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book