Ein Ke'eloheinu

A short piyyut from the Ge'onim era (7^th-11^th centuries). In the Ashkenazi Nusach it is recited on Sabbaths and festivals following the Musaf prayer. In the traditions of the Sephardic Nussach, the Ashkenazim in Eretz-Israel, and the Ari's Kabbalah, it is recited during weekdays and sometimes as part of the Zemirot Shabbath of Se'uda Shlishit (third meal).