瑜伽師地論分門記 1.151

1.151

二廣解中第五明攝諸經宗要有三十復次。分為二門。初十八復次明八解脫等諸定體相。後十二復次明諸經中所有修行要義。

Within the detailed explanation, the fifth [section], explaining the essential teachings of the sūtras, has thirty subsections, divided into two gates: the first eighteen subsections explain the essences and characteristics of concentrations such as the eight liberations; the latter twelve subsections explain the essential meanings of cultivation found in the sūtras.