Mahabharata 5.127.1

वैशंपायन उवाच · vaiśaṃpāyana uvāca

कृष्णस्य वचनं श्रुत्वा धृतराष्ट्रो जनेश्वरःविदुरं सर्वधर्मज्ञं त्वरमाणोऽभ्यभाषत

kṛṣṇasya vacanaṃ śrutvā dhṛtarāṣṭro janeśvaraḥviduraṃ sarvadharmajñaṃ tvaramāṇo'bhyabhāṣata

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