Mahabharata 6.88.19

अभिद्रुतं महाभागं राक्षसेन दुरात्मनाएतद्धि परमं कृत्यं सर्वेषां नः परंतपाः

abhidrutaṃ mahābhāgaṃ rākṣasena durātmanāetaddhi paramaṃ kṛtyaṃ sarveṣāṃ naḥ paraṃtapāḥ

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