瑜伽論記 16.258

16.258

然以喜是根本，論家偏說得起不起之相。泰云：剋實應說樂，但為別地故不說樂，樂在第三定故。又云：以二因故得起喜根，一、由利根；二、由多善資。利根慧脫無多善本，故不能起，鈍根俱脫雖多善本，而根鈍故。初得果時不得起喜，得果已後，別修九定。

However, because joy is the root, the treatise master specifically explains the characteristics of its being attained and arising or not arising. Tai says: Strictly speaking, pleasure should be spoken of, but because of distinguishing the stages, pleasure is not spoken of, as pleasure is in the third dhyāna. It also says: It is due to two causes that one can give rise to the joy faculty: first, due to sharp faculties; second, due to abundant provisions of wholesome [roots]. One of sharp faculties liberated through wisdom lacks abundant wholesome roots and therefore cannot give rise to it; one of dull faculties liberated both ways has abundant wholesome roots, yet because their faculties are dull, at the time of first attaining the fruit they cannot give rise to joy, but after attaining the fruit, they separately cultivate the nine concentrations.