法華玄義釋籤 18.6

18.6

次通教，通論無通無塞，次別論有通有塞，有通有塞即四門四悉，十觀具如三藏中。

Next, in the Shared Teaching, discussing generally there is neither blockage nor passage; next, discussing specifically there are passage and blockage. Passage and blockage are the four doors and four siddhāntas, and the ten contemplations are fully as in the Tripiṭaka.