Mahabharata 6.91.8

राक्षसापसदं हन्तुं स्वयमेव पितामहत्वां समाश्रित्य दुर्धर्षं तन्मे कर्तुं त्वमर्हसि

rākṣasāpasadaṃ hantuṃ svayameva pitāmahatvāṃ samāśritya durdharṣaṃ tanme kartuṃ tvamarhasi

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