俱舍論頌疏論本 6.37

6.37

為同地者，不與異地染法為因也。論云：「此與染法為通因故，同類因外更別建立，亦為餘部染法因故。由此勢力，餘部染法及彼眷屬亦生長故。」解云：為遍行因取五部果，名為通因。若同類因，唯自部果，非通因也。言眷屬者，謂與煩惱相應俱有法也。

Regarding "of the same stage": it does not serve as a cause for defiled phenomena of different stages. The treatise says: "Because these are common causes for defiled phenomena, they are established separately outside the similar cause; and because they are also causes for defiled phenomena of other categories. By the force of these, defiled phenomena of other categories and their retinues also arise and grow." The explanation says: Taking the fruits of the five categories as a universal cause is called a common cause. As for the similar cause, it is only the fruit of its own category, not a common cause. "Retinues" refers to phenomena associated with and co-existent with the afflictions.