說無垢稱經疏 6.348

6.348

贊曰：下佛為廣說。有二：初總、後別。此總也。解脫法者，即無為理。無漏諸法，離諸煩惱，名為解脫。門者教也，教能顯義，名之為門。

The Commentary says: Below, the Buddha expounds it at length for them. There are two parts: first, general; next, specific. This is the general [part]. The 'dharma of liberation' is the unconditioned principle. The anāsrava dharmas, being free from all afflictions, are called liberation. 'Door' means the teaching; because the teaching can reveal the meaning, it is called a door.