四分律行事鈔資持記 3.52

3.52

In the sixth [section], it first explains the prescribed stitching. Que (却) means reverse; that is, stitching with reverse stitches. "To differ from the worldly": because they only stitch straight. "To guard against non-Buddhists": there were bhikṣus who stitched robes straight, and [non-Buddhists] pulled out the threads to make them unravel and fall apart. "Furthermore... below" explains that mending robes also uses [such] stitching. "Four... below" decisively resolves [the issue] according to our own school.