俱舍論疏 8.4

8.4

論「已依三界至處別有幾」，已下三頌第一明三界也。於此頌前而有二問：一問三界體、二問於中處。

The treatise says: "Having already based [our exposition] on the three realms... how many distinct places are there?" The three verses below are the first section, explaining the three realms. Before this verse there are two questions: first, asking about the nature of the three realms; second, asking about the places within them.