Mahabharata 1.168.22

ऋतावथ महर्षिः स संबभूव तया सहदेव्या दिव्येन विधिना वसिष्ठः श्रेष्ठभागृषिः

ṛtāvatha maharṣiḥ sa saṃbabhūva tayā sahadevyā divyena vidhinā vasiṣṭhaḥ śreṣṭhabhāgṛṣiḥ

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