大乘義章 1.113

1.113

次辨其實。見陰生滅，即是實也。故《維摩》言「既除我相，當起法相。應作是念：但以眾法合成此身，起唯法起，滅唯法滅。」生滅是其法之實相，故云實也（此三門竟）。

Next, distinguishing reality: seeing the arising and perishing of the aggregates is precisely reality. Therefore the Vimalakīrti states: 'Having eliminated the mark of a self, one should give rise to the mark of dharmas. One should think: It is merely that a confluence of dharmas forms this body; when it arises, only dharmas arise; when it perishes, only dharmas perish.' Arising and perishing are the real mark of dharmas, which is why it is called reality (this completes the third gate).