俱舍論頌疏論本 10.23

10.23

釋曰：五相應有對者，眼等五觸名有對觸，觸雖無對，謂依眼等是有對故，從所依為名，名有對觸，有對之觸，依主釋也。

Explanation: "Associated with the five is contact with resistance": the five contacts of the eye and so forth are called contacts with resistance (pratighasamsparśa). Although contact itself lacks resistance, because its bases—the eye and so forth—possess resistance, it is named after its base and called contact with resistance; 'the contact of resistance' is a genitive compound (tatpuruṣa).