俱舍論疏 4.122

4.122

論「於不善見至說為見故」，釋不善見，同不共品有二十也。如文可解。

The Śāstra says: "In unwholesome view […] because it is said to be view." This explains that unwholesome view, like the unshared category, has twenty [mental factors]. It can be understood from the text.