成唯識論演祕 6.627

6.627

有義兩釋：一同《疏》明；第二解云：欲界無明通發三界行，發業無明見所斷故，得上定者不伏下故。然證上定應言根本，近分未能伏下盡故何名行支？根本初生染未起故。故說上定下無明發，故《疏》非理。

One opinion has two explanations: The first is identical to the explanation in the Commentary. The second explanation says: Ignorance of the desire realm generally initiates the formations of all three realms; because the ignorance that initiates karma is abandoned by seeing, one who attains the upper absorption does not suppress the lower. However, when realizing the upper absorption, one should speak of the fundamental [absorption], because the threshold absorption cannot yet suppress the lower entirely, so how could it be called the branch of karmic formation? When the fundamental absorption first arises, defilement has not yet arisen. Therefore, it is said that the upper absorption is initiated by lower ignorance; hence, the Commentary is not reasonable.