Mahabharata 5.170.5

ततोऽहं भरतश्रेष्ठ प्रतिज्ञां परिपालयन्चित्राङ्गदं भ्रातरं वै महाराज्येऽभ्यषेचयम्

tato'haṃ bharataśreṣṭha pratijñāṃ paripālayancitrāṅgadaṃ bhrātaraṃ vai mahārājye'bhyaṣecayam

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