Mahabharata 7.28.30

अवोचं चैतदस्त्रं वै ह्यमोघं भवतु क्षमेनरकस्याभिरक्षार्थं नैनं कश्चिद्वधिष्यति

avocaṃ caitadastraṃ vai hyamoghaṃ bhavatu kṣamenarakasyābhirakṣārthaṃ nainaṃ kaścidvadhiṣyati

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