Mahabharata 7.126.34

यच्च पित्रानुशिष्टोऽसि तद्वचः परिपालयआनृशंस्ये दमे सत्ये आर्जवे च स्थिरो भव

yacca pitrānuśiṣṭo'si tadvacaḥ paripālayaānṛśaṃsye dame satye ārjave ca sthiro bhava

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