俱舍論疏 2.51

2.51

On the Śāstra's: "The mind dhātu, the mental consciousness dhātu... without vitarka and without vicāra": this is the explanation. Among these three dhātus, dharmas are of four kinds: first, the other associated dharmas, excluding vitarka and vicāra; second, unassociated dharmas and the vicāra of the dhyānāntara; third, vitarka; fourth, the vicāra of the desire realm and the first dhyāna. This text is the first. Regarding the preceding text, there are again three sections: namely, 1. having vitarka and having vicāra, 2. without vitarka and only with vicāra, and 3. without vitarka and without vicāra. That is to say, among these three dhātus, excluding vitarka and vicāra, if they are in the desire realm or the first dhyāna, they have vitarka and have vicāra; in the dhyānāntara, they are without vitarka and have vicāra; from the second dhyāna upwards up to the summit of existence (bhavāgra), they are without vitarka and without vicāra.