Mahabharata 12.306.94
विदेहराज्यं च तथा प्रतिष्ठाप्य सुतस्य वैयतिधर्ममुपासंश्चाप्यवसन्मिथिलाधिपः
videharājyaṃ ca tathā pratiṣṭhāpya sutasya vaiyatidharmamupāsaṃścāpyavasanmithilādhipaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book