瑜伽論記 18.271

18.271

即泰師有二種共不共，共二種者一共中共如山河等，二共中不共如宅舍等，不共二者一不共中不共，如自眼根他不用緣故，二不共中共如身中扶根塵為他緣似故，此中即共中二。

Master Tai has two kinds of shared and unshared. The two kinds of shared are: first, the shared within the shared, such as mountains and rivers; second, the unshared within the shared, such as houses and residences. The two kinds of unshared are: first, the unshared within the unshared, such as one's own visual faculty, which others cannot condition; second, the shared within the unshared, such as the support-matter of the faculties within the body, which appears as a condition for others; here, it refers to the two within the shared.