Mahabharata 5.50.12

तस्य वीर्येण संक्लिष्टा नित्यमेव सुता ममस एव हेतुर्भेदस्य भीमो भीमपराक्रमः

tasya vīryeṇa saṃkliṣṭā nityameva sutā mamasa eva heturbhedasya bhīmo bhīmaparākramaḥ

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