Sefer haYashar

Sefer haYashar (Hebrew ספר הישר "Book of the Upright One"). In English Jashar was traditionally, perhaps mistaken as a name and left untranslated, rendered Book of Jasher.

There are a number of works with this name:

Rabbinical Treatises:

Forgery

Fiction

External links

How Sefer Hayasher has Come Down to Us