法華文句記 7.20

7.20

理非不然，實報義對發大心時，故退大後思同居機，復消中字，義便故也。

In principle it is not that this is not so; the meaning of "real reward" corresponds to the time of generating the great aspiration. Therefore, after backsliding from the Great [Vehicle], he contemplates the capacity of co-dwelling and also explains the word "midway," because the meaning is convenient.