俱舍論疏 5.194

5.194

論「若爾至應不遍有為」，有部難也。最後聲、光及涅槃時最後六處，既無後可異，應無住、異。有部師難住、異相也。既無住、異，即汝所立住、異二相不遍有為。

On the treatise passage: "If so … it would fail to pervade all conditioned phenomena": the Vaibhāṣika objects. In the case of the very last sound, the last light, and the final six sense bases at the time of nirvāṇa, since there is nothing subsequent to differ from, they should lack staying and alteration. The Vaibhāṣika master objects to the characteristics of staying and alteration: since there would be no staying or alteration, the two characteristics of staying and alteration you establish would fail to pervade all conditioned phenomena.