俱舍論記 1.286

1.286

「即此說名至隣阿伽色」者，此述本論空界異名。有二釋。即此空界色說名隣阿伽色。伽翻為礙。阿通二義，或名為極、或名為無。若言隣極礙色，謂空界色與極礙相隣，是隣阿伽之色，名隣阿伽色，約相隣釋。若言隣無礙色，即無礙名色。此無礙色與餘礙相隣，即隣是阿伽，故名隣阿伽色。兩師各據一釋，義竝無違。

Regarding "This very [matter] is called... [up to] ...matter adjacent to obstruction (aghaniviṣṭa-rūpa)": this relates the alternative names for the cavity-element (ākāśa-dhātu) in the basic treatise. There are two interpretations. This very cavity-element form is called "matter adjacent to obstruction" (aghaniviṣṭa-rūpa). Gha translates as "obstruction". A has two meanings: it means either "extreme" or "absence". If one says "matter adjacent to extreme obstruction", it means the cavity-element form is adjacent to extreme obstruction; being form that is adjacent to agha, it is named "matter adjacent to agha"—this explains it in terms of adjacency. If one says "matter that is adjacent and unobstructed", then it is non-obstructive name-and-form; this unobstructed form is adjacent to the remaining obstructive forms, so the adjacent one is agha, hence it is called aghaniviṣṭa-rūpa. The two masters each rely on one interpretation, and neither meaning contradicts [the other].