त्वं चाहं च मित्रं लभावहे इत्येवं आदिध् समसंधिः ॥ कZ_०७.९.०४ ॥
tvaṃ cāhaṃ ca mitraṃ labhāvahe ityevaṃ ādiḥ samasaṃdhiḥ
‘तू आणि मी—दोघेही एक मित्र मिळवू’—अशी प्रस्तावना असलेला संधी‑आरंभ हा सम (संतुलित) संधी आहे।
Because the stated benefit is symmetric: both parties explicitly claim the same gain (acquiring an ally), implying parity in advantage and obligation.