https://www.sefaria.org/Siddur_Sefard%2C_Weekday_Shacharit%2C_Beit_Yaakov
Siddur Sefard, Weekday Shacharit, Beit Yaakov | Sefaria Library
On days in which Tachanun is not said, "A prayer of David," is omitted, and we begin "House of Jacob". On days in which "Almighty who is slow to anger," is...
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