Mahabharata 8.51.45

आश्चर्यं सिन्धुराजस्य वधं जानन्ति पार्थिवाःअनाश्चर्यं हि तत्त्वत्तस्त्वं हि पार्थ महारथः

āścaryaṃ sindhurājasya vadhaṃ jānanti pārthivāḥanāścaryaṃ hi tattvattastvaṃ hi pārtha mahārathaḥ

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