Mahabharata 2.37.15

इति तस्य वचः श्रुत्वा ततश्चेदिपतिर्नृपःभीष्मं रूक्षाक्षरा वाचः श्रावयामास भारत

iti tasya vacaḥ śrutvā tataścedipatirnṛpaḥbhīṣmaṃ rūkṣākṣarā vācaḥ śrāvayāmāsa bhārata

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