涅槃經遊意 1.226

1.226

次破第三開善解具二義：汝言常住之法常有、始有者，亦應常住之法有曾、有今，若有曾有今則墮三世，成無常。

Next, refuting the third explanation of Kaishan which maintains both meanings: when you say that the eternally abiding dharma is originally existent and newly acquired, it would follow that the eternally abiding dharma has a past and a present; if it has a past and a present, it falls into the three times and becomes impermanent.