Mahabharata 7.166.28

सर्वोपायैर्यतिष्यामि पाञ्चालानामहं वधेधृष्टद्युम्नं च समरे हन्ताहं पापकारिणम्

sarvopāyairyatiṣyāmi pāñcālānāmahaṃ vadhedhṛṣṭadyumnaṃ ca samare hantāhaṃ pāpakāriṇam

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