Sefer matsref  ha-ʻavodah
Subtitle: hu ṿikuaḥ asher hayah zeh ke-shivʻim u-shetayim shanah ben shene gedole ha-dor .ha-eḥad me-ʻadat ha-Ḥasidim ṿeha-sheni me-ʻadat ha-mitnagdim .. nosaf ... mikhtav me-et ... Shneʾur Zalman [mi-ḳ.ḳ. Ladi]
By: hotsetiṿ la-or paʻam rishonah Dov Ber b.la.a.a. mo.h. Shalom ha-Leṿi zal Segaloṿits
Contributors: Binyamin Zeʾev, mi-Slonim.; Shneur Zalman, of Lyady, 1745-1813.; Segaloṿits, Dov Ber ben Shalom, ha-Leṿi
Publisher: gedruḳṭ bay Gruber eṭ Langrien
Published: 1858
Place of publication: Ḳenigsberg
Language: heb
Number of pages: 38
Subjects: Judaism -- Ari rite -- Liturgy.; Hasidism -- Apologetic works.; Hasidism -- Controversial literature.; Jewish ethics.
Work titles: Mastref ha-ʻavodah
Notes: Ascribed to either Jacob Bachrach or Benjamin Zeʾev, of Slonim.

Fisher copy defective: leaves 37-38 missing; leaf 36 damaged, with some loss of text.