पुत्रसर्वस्वदाने संधिश्चेत्पुत्रफलतो विशेषः ॥ कZ_०७.१७.२८ ॥
putra-sarvasva-dāne saṃdhiś cet putra-phalato viśeṣaḥ
If a treaty is to be concluded by giving a son and one’s entire stake (all that is pledged), the decisive difference is the ‘value/fruit’ of the son (i.e., the strategic worth of that heir).
It implies evaluating the heir’s political and strategic value—legitimacy, competence, factional support—because that determines how constraining the pledge truly is.