俱舍論疏 9.240

9.240

論「此中欲者謂五妙欲」，已下別釋四取。欲者即色等五妙欲境，皆能生欲，故名欲也。或是所欲故名欲，於五妙境起貪名為欲取。

The treatise says: "Here, 'desires' refers to the five wonderful sensory pleasures." Below, it individually explains the four graspings. "Desires" refers to the five wonderful sensory objects such as visible form; they can all give rise to desire, and are thus called "desire." Alternatively, they are called "desire" because they are what is desired; the arising of attachment toward the five wonderful sensory objects is called "grasping at desires."