大乘義章 1.52

1.52

言當現者，若就凡說，因性在現、果性在當；若就佛論，果性在現、因性過去。語其理性，旨通當現，體非當現（此四門竟）。

Regarding 'future and present': if spoken of with respect to ordinary beings, the causal nature is in the present, and the fruitional nature is in the future; if discussed with respect to the Buddha, the fruitional nature is in the present, and the causal nature is in the past. Speaking of its nature of principle, the purport pervades both future and present, while its essence is neither future nor present. (This concludes the fourth section.)