सम्भूयाभिगमनेन वा निर्विश्येत ध्रुवे लाभे निर्दिष्टेनांशेन अध्रुवे लाभांशेन ॥ कZ_०७.४.२१ ॥
sambhūyābhigamanena vā nirviśyeta dhruve lābhe nirdiṣṭenāṃśena adhruve lābhāṃśena
Or, by marching together and entering/occupying (the target), he should distribute shares by a fixed allotment when the gain is certain, and by a gain-proportional allotment when the gain is uncertain.
Certainty allows fixed shares; uncertainty requires variable shares tied to realized gains—an early risk-sharing contract principle.