त्वं चाहं च मित्रं लभावहे इत्येवं आदिध् समसंधिः ॥ कZ_०७.९.०४ ॥
tvaṃ cāhaṃ ca mitraṃ labhāvahe ityevaṃ ādiḥ samasaṃdhiḥ
Un tratado que se abre con la fórmula: «Tú y yo ganaremos ambos un amigo»—esto es una alianza igual (equilibrada).
Because the stated benefit is symmetric: both parties explicitly claim the same gain (acquiring an ally), implying parity in advantage and obligation.