Sifra

Sifra (Jewish Babylonian Aramaic: סִפְרָא, romanized: sip̄rā, lit. 'document') is the Midrash halakha to the Book of Leviticus. It is frequently quoted in the Talmud and the study of it followed that of the Mishnah. Like Leviticus itself, the midrash is occasionally called Torat Kohanim, and in two passages Sifra debbe Rav.