瑜伽論記 19.125

19.125

又釋，餘四是得一切助伴，思現觀最初起故，是得果之前行方便道也。又釋，餘四是得四果一者之助伴，是得圓滿四果者之前行。

Another explanation: The remaining four are companions for attaining all [fruits]; because the direct realization through reflection arises first, it is the preparatory path of preliminary practice for attaining the fruits. Another explanation: The remaining four are companions for one who attains one among the four fruits, and preliminary practices for one who attains all four fruits completely.