nanu ca samayād api katham asau niścetuṃ śakyate / tathā hi yadi samayakāle paravivakṣāviśeṣaḥ pratītyupāyaḥ sambhavet tadāsau samayas tatra kṛtaḥ paścād vyavahārakāle vivakṣāviśeṣapratītihetur bhavet /
"But how can that be ascertained even through convention? For if at the time of convention the particular vivakṣā of another were a means of cognition, then that convention made thereupon might later, at the time of usage, become the cause of cognition of the particular vivakṣā."