瑜伽論記 23.13

23.13

就略解中先辨一因，後明二緣，景師云：五品行者，一、諸行自性，二、諸行因緣，三、雜染因，四、清淨因，五、是清淨。因是五清淨，於此五中雜染因緣即是煩惱種子。

Within the brief explanation, it first identifies one cause and then clarifies two conditions. Master Jing says: "Five categories of formations: 1. essential nature of formations; 2. causes and conditions of formations; 3. causes of defilement; 4. causes of purification; 5. purification itself. The causes are the five purifications; among these five, the causes and conditions of defilement are precisely the seeds of afflictions."