In his "Recompilation of Dao'an's catalogue of anonymous sūtras" 新集安公失譯經錄, in the section dedicated to texts to which he had access 有, Sengyou lists a Deng ru fa yan jing 等入法嚴經:
Hayashiya examines Dao’an’s list of anonymous scriptures, as “recompiled” by Sengyou under the title 新集安公失譯經錄 at CSZJJ T2145 (LV) 16c7-18c2. The Deng ru fa yan jing 等入法嚴經 is included in the section of the Dao'an/CSZJJ list for texts listed as extant 有; Sengyou adds an interlinear note: 或云菩薩等入法嚴經; 17b14. Hayashiya gives, in tabulated form, information about the treatment of the same texts in Fajing T2146, LDSBJ T2034, the KYL T2154, and his own opinion about whether or not the text is extant in T, and if so, where (by vol. and page no.). The above text is considered by Hayashiya to be “missing” (闕) from the Taishō edition of the canon.