成唯識論述記 10.87

10.87

述曰：等持者是三摩地，即定數，不通散，有不說三業。《對法》云：起三業自在用時，所有一切種心恒安住。四十三云：即妙善世、出世靜慮自性。彼三相雖別，皆以靜慮為體。然二種行相別，如前卷，廣九門亦如彼。

The Commentary states: "Equilibrium" (samādhi) is meditative absorption (samādhi), namely the mental factor of stabilization; it does not extend to distraction, and some do not state the three karmas [for it]. The Abhidharma-samuccaya says: When giving rise to the masterly application of the three karmas, the mind of all modes remains constantly at rest. Chapter 43 [of the Yogācārabhūmi] states: It is the intrinsically pure mundane and supramundane nature of meditative stabilization. Although those three aspects differ, all take meditative stabilization as their essential nature. However, the aspects of practice of the two kinds differ, as in the previous fascicle; the extensive nine gates are also as stated there.