大乘義章 2.38

2.38

三無為義十門分別（釋名一　辨相二　得之分齊三　多少不同四　三性分別五　漏無漏分別六　有無分別七　常無常分別八　約對四無共相收攝九　約對四諦共相收攝十）

The doctrine of the three unconditioned dharmas is differentiated through ten gates: 1. Explaining the names; 2. Distinguishing their characteristics; 3. The scope of their attainment; 4. Differences in number; 5. Differentiation by the three natures; 6. Differentiation by sāsrava and anāsrava; 7. Differentiation by existence and non-existence; 8. Differentiation by permanence and impermanence; 9. Subsumption relative to the four non-existences; 10. Subsumption relative to the four noble truths.