俱舍論疏 6.201

6.201

論「若爾至作所緣緣」，有部難也。經說無常因緣所生諸色，汝即謂因唯是有為。經中既說無常因緣生於識者，無為亦應非所緣緣。

[When] the treatise [states]: "If so, ... function as an objective condition (ālambanapratyaya)," the Vaibhāṣika objects: "Since the sūtra states that all forms are impermanent and born of causes and conditions, you then claim that causes are exclusively conditioned. But since the sūtra also states that consciousness is born of impermanent causes and conditions, the unconditioned also ought not to be an objective condition."