कल्याणबुद्धिना संदधीत शठं तथा इति प्रतिगृह्यातिसंदध्यात् इति ॥ कZ_०९.३.४१ ॥
kalyāṇabuddhinā saṃdadhīta śaṭhaṃ tathā iti pratigṛhya ati-saṃdadhyāt iti.
With a posture of benevolent intent, one should enter into an understanding with the deceitful; having accepted (his approach), one should then bind him by a counter-arrangement (over-commit/over-structure the pact) so that he is contained.
Accept engagement to avoid immediate hostility, then impose layered terms, monitoring, and dependencies that restrict the deceiver’s freedom of action.