瑜伽論記 7.13

7.13

內風界中，脇臥風等者，景云：有人患風唯得脇仰臥名脊臥風，或有患風身病如小刀大刀等割，亦如鍼刺，或有患風時面生黑點，一一皆如畢鉢羅狀。

Regarding "wind from lying on one's side" within the internal wind element: Jing says: there are people afflicted with wind [humor] who can only lie on their sides or on their backs, called back-lying wind; or there are people afflicted with wind whose physical ailment feels like being sliced by small knives or large knives, or like needle pricks; or when people are afflicted with wind, black spots arise on their faces, each resembling a pippalī.