Mahabharata 15.4.6

स्मृत्वा दुर्योधनं शत्रुं कर्णदुःशासनावपिप्रोवाचाथ सुसंरब्धो भीमः स परुषं वचः

smṛtvā duryodhanaṃ śatruṃ karṇaduḥśāsanāvapiprovācātha susaṃrabdho bhīmaḥ sa paruṣaṃ vacaḥ

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