Mishnah Berurah 131:35 lists the following days on which Ashkenazim do not recite Lamnatzeiach (Tehillim 20) during weekday Shacharit between Ashrei and Uva LeTzion:

  • Rosh Chodesh
  • Chanukah
  • Purim
  • Erev Pesach
  • Erev Yom Kippur
  • Tish'ah BeAv
  • Purim Katan

There is no mention of omitting Lamzatzeiach on Isru Chag.

However, I have been present in a number of Ashkenazi synagogues (mostly in Israel) where Lamazatzeiach was omitted on Isru Chag.

What is the source for this practice?

  • 1
    In Israel remember Isru Chag is a day that is Yom Tov for most Jews.
    – Double AA
    Jun 11 '19 at 11:41

R' Ya'akov Chayim Sofer זצ''ל writes in Kaf HaChayim to Orach Chayim 429:21 that according to the R' Ya'akov Moelin זצ''ל Lamenatzeiach is not said on Isru Chag. (see here)


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