四分律行事鈔資持記 2.1442

2.1442

蹲坐戒。（蹲坐倒地，形露招譏。）尻苦刀反，臀也。不犯中，禮懺等跪同蹲故。

The precept against squatting. (Squatting and tumbling to the ground, the body being exposed invited criticism.) Kāo (尻) is pronounced in the fanqie kǔ-dāo, meaning buttocks. In [the section on] non-offense, kneeling during repentance bows and so forth is treated the same as squatting.