When the Sarvāstivāda school held a synod in Kashmir during the reign of Kanishka II (c. 158-176), the most important Sarvāstivāda Abhidharma text, the "Astagrantha" of Katyayaniputra was rewritten and revised in Sanskrit. This revised text was now known as "Jñānaprasthāna" ("Course of Knowledge"). Though the Gandharan "Astagrantha" had many vibhaṣas (commentaries), the new Kashmiri "Jñānaprasthāna" had a Sanskrit "Mahāvibhaṣa," compiled by the Kashmir Sarvāstivāda synod. The "Jñānaprasthāna" and its Mahāvibhaṣa, were then declared to be the new orthodoxy by Kashmiris, who called themselves Vaibhāṣikas.