Mahabharata 12.136.12

भीष्म उवाच · bhīṣma uvāca

त्वद्युक्तोऽयमनुप्रश्नो युधिष्ठिर गुणोदयःशृणु मे पुत्र कार्त्स्न्येन गुह्यमापत्सु भारत

tvadyukto'yamanupraśno yudhiṣṭhira guṇodayaḥśṛṇu me putra kārtsnyena guhyamāpatsu bhārata

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