Mahabharata 12.314.1

भीष्म उवाच · bhīṣma uvāca

एतच्छ्रुत्वा तु वचनं कृतात्मा कृतनिश्चयःआत्मनात्मानमास्थाय दृष्ट्वा चात्मानमात्मना

etacchrutvā tu vacanaṃ kṛtātmā kṛtaniścayaḥātmanātmānamāsthāya dṛṣṭvā cātmānamātmanā

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