KLAUSNER, ABRAHAM. Minhagim

The first extant work in the field of local religious custom. Incorporates practices for the entire year, referring to benedictions, prayers and rites according to the Aschkenazi ritual. Klausner was the primary mentor of both Jacob Moellin (the Mahari”l) and Isaac Tyrnau. Thus his influence laid the foundation for the spread of Nusach Aschkenaz and Minhag Literature in general. A critical edition of Klausner’s Sepher Minhagim with notes, sources and an introduction was prepared by C.J. Ehrenreich in 1929