Mahabharata 13.75.29

वैशंपायन उवाच · vaiśaṃpāyana uvāca

तथा सर्वं कृतवान्धर्मराजो; भीष्मेणोक्तो विधिवद्गोप्रदानेस मान्धातुर्देवदेवोपदिष्टं; सम्यग्धर्मं धारयामास राजा

tathā sarvaṃ kṛtavāndharmarājo; bhīṣmeṇokto vidhivadgopradānesa māndhāturdevadevopadiṣṭaṃ; samyagdharmaṃ dhārayāmāsa rājā

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