This volume covers the commentaries of the Sifra on Parashat Vayikra for the first time, in its entirety. Includes commentaries of Rabbenu Shemu’el, ascribed to Rash of Sens, Heber haKohanim by R. Hayyim Hebraya to Sifra on Parashat Vayikra dibbura de-Nedava and dibbura de-Hova, edited from medieval manuscripts with source notes, comments and explanations, introductions and indices. The introductions examine these three commentaries in detail, their provenance, the identity of their authors and evaluate their exegetical methods.