維摩經略疏垂裕記 1.144

1.144

四、寂光土，二：初、剋示極果寂光。「法身冥資」等者，毘盧遍攝故曰冥資，即此冥資名為說法。復次應知，應身說處即法身說，吾今此身即是法身。釋迦牟尼名毘盧遮那，故云無說而說。

Fourth, the land of quiescent light, with two parts: first, strictly indicating the quiescent light of the ultimate fruition. Regarding 'the dharmakāya's covert assistance,' etc.: Vairocana ubiquitously embraces all, hence it is called covert assistance; this very covert assistance is termed expounding the Dharma. Furthermore, one should know that where the response body expounds is precisely where the dharmakāya expounds; my present body is itself the dharmakāya. Śākyamuni is named Vairocana; hence it is called expounding without expounding.