Mahabharata 3.78.17

ततोऽक्षहृदयं प्रादात्पाण्डवाय महात्मनेदत्त्वा चाश्वशिरोऽगच्छदुपस्प्रष्टुं महातपाः

tato'kṣahṛdayaṃ prādātpāṇḍavāya mahātmanedattvā cāśvaśiro'gacchadupaspraṣṭuṃ mahātapāḥ

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