Sefer HaOrah is a collection of legal material attributed to Rashi (Rabbi Shlomo ben Yitzchak) and is part of a body of literature known as Sifrei DeVei Rashi (Works of the School of Rashi), compiled by Rashi’s students. It also contains legal rulings of other authorities, such as Rabbi Yehuda of Barcelona (author of Sefer HaItim), and overlaps in content with other works from the school of Rashi as well. It was published in 1905 by Solomon Buber based on several variant manuscripts.