Our Master, Rabbi Yosef Karo of blessed memory, wrote that it is good to say the passage of the Manna in order to strengthen our belief that our entire livelihood, down to the tiniest detail, comes through Hashem’s providence. Rabenu Bahˌya mentions a tradition handed down by our sages that anyone who says the passage of the Manna is promised that he will never lack sustenance. The author of Yesh Nohˌlin states, “I found in the writings of the Kabbalists that one should say each verse twice followed by the Targum Onkelos.” Rabbi hˍayim Palazzi and his son Rabbi Yit‣shˌak concur and add that the Shevet Mussar and Kemahˌ Solet concur as well. Indeed, Rabbi hˍayim Vital was accustomed to reading this passage before Shahˌarit until Rabenu HaAri told him to stop. According to the Shaarey Teshuvah, Rabbi Yaakov Emdin, and Kaf Hahˍayim, it appears that the Ari was against reading it before the prayers, but would agree that doing so after the prayers is permitted.