瑜伽論記 20.181

20.181

就第二散釋六度清淨中，初釋施中，言由增一次第者，如施門初自性施中唯一，第二、一切施中有二；第三、難行施即有三，乃至第九、清淨施中有十。

In the second [section], separately explaining the purity of the six perfections: first, in explaining giving, regarding 'by order of increment by one': as in the gates of giving, the first—intrinsic giving—has only one; the second—all-giving—has two; the third—giving difficult to practice—has three; and so on, up to the ninth—pure giving—which has ten.