Mahabharata 7.87.43
शूराश्च कृतविद्याश्च धनुर्वेदे च निष्ठिताःसंहताश्च भृशं ह्येते अन्योन्यस्य हितैषिणः
śūrāśca kṛtavidyāśca dhanurvede ca niṣṭhitāḥsaṃhatāśca bhṛśaṃ hyete anyonyasya hitaiṣiṇaḥ
Our plain-language meaning of this verse is waiting for scholar review.