俱舍論頌疏論本 9.66

9.66

釋曰：前兩句正明相攝，下兩句釋妨也。三煩惱者，無明、愛、取煩惱為性。二業者，行、有二支以業為體。

The commentary says: The first two lines directly clarify the mutual subsumption; the latter two lines resolve an objection. "Three are defilements": ignorance, craving, and grasping have defilement as their nature. "Two are karma": the two links of formation and existence have karma as their substance.