妙法蓮華經文句 1.76

1.76

觀心釋者，從假入空觀，即偏破生死；從空入假觀，即偏破涅槃，中道正觀無復前後（云云）。

In terms of contemplation of mind: The contemplation of entering emptiness from the provisional one-sidedly destroys saṃsāra; the contemplation of entering the provisional from emptiness one-sidedly destroys nirvāṇa; the correct contemplation of the Middle Way has no before and after (and so forth).