瑜伽師地論略纂 6.36

6.36

「四法迹」，謂三學迹，即無貪、無瞋、正念。正定三種繫屬，初根互相屬、次識根互相屬、後根境互相屬。

The "four footprints of Dharma" refers to the footprints of the three trainings, namely non-attachment, non-hatred, and right mindfulness. Right concentration has three kinds of connection: first, the faculties connect with one another; second, the consciousnesses and faculties connect with one another; third, the faculties and objects connect with one another.