妙法蓮華經玄義 9.167

9.167

四、結成悉檀者，權實二智，十用不同，即是一音演說，隨類各解。迹中破廢，令七種方便開佛知見。本中破廢，恒沙菩薩斷疑增道，皆是四悉檀意，成熟眾生。今束此十用為四悉檀：先、束迹門。次、束本門。

Fourth, on concluding with the siddhāntas: the two wisdoms of provisional and real have ten different functions; this is a single sound expounding, with each kind [of being] understanding according to its class. Refuting and abolishing within the traces causes the seven types of skillful means to open the buddha-knowledge and vision. Refuting and abolishing within the original source causes bodhisattvas numerous as the sands of the Ganges to sever doubts and advance on the path. All of these are the intention of the four siddhāntas to mature sentient beings. Now I shall subsume these ten functions into the four siddhāntas: first, subsuming the section of the traces; next, subsuming the section of the original source.