俱舍論疏 20.89

20.89

論「諸有達無至為何所緣」，經部反難有部也。若謂第十三處是無，非所緣境，達無十三處者，若不緣無，為何所緣？

The Śāstra says: "For those who comprehend non-existence... what do they have as an intentional object?": the Sautrāntikas question the Sarvāstivādins in return. If you say that the thirteenth āyatana is non-existent and not an intentional object, then when one comprehends the non-existence of a thirteenth āyatana, if one does not take non-existence as an object, what does one take as an intentional object?