俱舍論疏 20.60

20.60

The Śāstra says: "Furthermore, as for what they say... exists substantially just like the present": this thirdly resolves [the objections based on] citing the two sūtras. Within this there are two parts: first, resolving the World-Honoured One's statement that the past and future exist; second, resolving the World-Honoured One's statement that consciousness arises from two conditions. This is the first. The Sautrāntika masters say: We also say that the past, future, and present exist; that is, having once existed and so forth is called 'existing'. Because the past has causes and the future has fruits, they are called 'existing'. Another explanation: because there are present fruits, one knows that there are past causes; because there are present causes, one knows that there are future fruits. This is unlike the Sarvāstivādins' view that the past and future exist substantially just like the present.