俱舍論疏 3.103

3.103

論「若爾至亦應如是」，外將喜、捨受例，亦應唯據相應名順。

The treatise says: "If so up to it should also be like this"—the opponent extends the analogy to the feelings of joy and equanimity, arguing that they too should be called "leading to" solely on the basis of association.