Hekalot Rabbati; Hekalot Zuṭarti: Two mystic writings attributed to Ishmael ben Elisha; indiscriminately referred to by the various names of "Sefer Hekalot," "Pirḳe Hekalot," "Pirḳe Rabbi Yishmael," "Pirḳe Merkabah," "Ma'aseh Merkabah," "Hilkot Merkabah. They are also quoted as the "Book of Enoch," and ... (Jewish encyclopedia 1906) [100%] 1906-01-01 [Jewish encyclopedia 1906]