俱舍論疏 28.30

28.30

The Śāstra says: "Possessing investigation, joy, and pleasure [...] but is not accompanied by vitarka." This clarifies that the first dhyāna possesses vitarka, vicāra, prīti, and sukha. The verse only states "vicāra" in order to indicate that it is accompanied by vitarka, because where vicāra has joy and pleasure, it must have vitarka, and because the intermediate dhyāna lacks joy and pleasure. In all other cases where there is vicāra, it indicates the presence of vitarka.