俱舍論頌疏論本 24.26

24.26

釋曰：中、生各三，上流為一，經依此立七善士趣。上流一者，同上行故，總合立一。問：「何故須、斯二果不立七善士趣名？」答：「趣是行義，唯此七種皆行善業、不行惡業，須、斯二果善惡雜行。又此七種皆往上界，不復還來，須、斯二果往而復來，故唯此七種立善士趣名。」

The explanation says: There are three each for the intermediate state and rebirth, and one for the upstream traveler; relying on these, the sūtra establishes the seven destinies of good persons. As for the upstream traveler being one: because they are alike in going upward, they are combined and established as one. Question: "For what reason are the two fruits of stream-enterer and once-returner not established under the name of the seven destinies of good persons?" Answer: "'Destiny' (gati) has the meaning of conduct. Only these seven kinds perform good karma and do not perform evil karma; the two fruits of stream-enterer and once-returner have mixed good and evil conduct. Furthermore, these seven kinds all go to higher realms and do not come back; the two fruits of stream-enterer and once-returner go and come back again. Therefore, only these seven kinds are established under the name of destinies of good persons."