The first book of the Shaagat Aryeh, through which he became renowned for his brilliance. The book was widely accepted throughout the Jewish world, reaching the community of Metz, who subsequently invited him to succeed R. Yehonatan Eybeschutz as their rabbi.
The author of Shaagat Aryeh was extremely poor, and due to a shortage of paper, the first edition of Shaagat Aryeh was written almost completely in acronyms.
[1], 89 leaves. 33.5 cm. Fair condition. Browned leaves. Stains. Wear and creases to some leaves. Worming (significant worming to title page and several other leaves), affecting text. Tears in several places, affecting text. Small open tear to title page, affecting border. New leather binding.
Without four final leaves (90-93), which were added after the printing of the book was completed, and do not appear in many copies. This copy is lacking the list of print workers, present in most copies on the final page (89b).