俱舍論疏 2.117

2.117

論「迦濕彌羅國至應知亦爾」，下釋彼同分。「西方師」，是揵馱國師。薩婆多師釋是正義，不許有識不與根合。同分眼有三，謂已生、正生、當生，此無異說。彼同分眼，二說不同。婆沙師說有四種，西方諸師五種，如文可解。已上釋五根同分彼同文。

On the Śāstra's stating, "In the country of Kaśmīra [...] should be understood likewise": below explains non-counterparts. "Masters of the western region" are masters of the Gandhāra country. The explanation of the Sarvāstivāda masters is the correct doctrine: they do not permit a consciousness not conjoined with a sense-base. Counterpart eyes are of three kinds: already arisen, currently arising, and destined to arise; about this there is no difference of opinion. Regarding non-counterpart eyes, there are two different theories: the masters of the Vibhāṣā say there are four kinds, while the masters of the western region say five kinds, as is clear from the text. The above explains counterparts and non-counterparts among the five sense-faculties.