開元釋教錄 13.14

13.14

此對法藏諸部不同。流布此方比諸為眾。今者據其有部根本。身論為初。足論居次。毘婆沙等支派編末。餘部既眾。難以科條。以俟將來。此無先後。

This Abhidharmapiṭaka differs across the various schools. Those that have circulated in this land are the most numerous compared to others. Now, on the basis of the Sarvāstivāda root texts, the body śāstra is placed first, the foot śāstras follow next, and branches such as the vibhāṣās are arranged at the end. Since the other schools are numerous and difficult to categorize by rules, we await the future [for their ordering]; here they have no fixed precedence.