法華玄論 2.37

2.37

答：亦有三輪，但說法輪未開教之權實、神通輪未開身之本迹。今始俱開，故與昔異也。

Answer: There were also the three wheels, but the wheel of preaching the Dharma had not yet opened the provisional and real of the teachings, and the wheel of supernatural powers had not yet opened the original and trace of the body. Only now are both opened together, so it differs from the past.