俱舍論記 25.86

25.86

「道於餘處至依何建立」者，此下第二明四通行。問：道於餘處立通行名。通謂通達，行謂行迹。能正通達名通，趣向涅槃名行。此有幾種？依何建立？

Regarding "The path in other contexts [...] based on what is it established?": from here down is the second [section], explaining the four modes of progress. Question: In other contexts the path is given the name 'mode of progress' (pratipad). 'Penetration' (prati-) means thorough penetration; 'stepping' (-pad) means footprints of travel. Being able to thoroughly penetrate correctly is called 'penetration', and proceeding toward nirvāṇa is called 'stepping'. How many kinds of this are there? Based on what is it established?