俱舍論疏 2.32

2.32

論「若爾至彼無用故」，難也。在彼無段食，香、味二境無用故無。在彼無二境，鼻、舌無用，在彼應無。

The treatise says: "If so... because they have no function there." This is an objection. In that [realm] there is no material food, and because the two objects of smell and taste have no function, they are absent. Since the two objects are absent there, the nose and tongue have no function and should also be absent there.