What are the variant nusachot (liturgical formulations) in the Musaf Amidah for Rosh Chodesh, and does one fulfill the obligation if Musaf is replaced by the weekday Shacharit?

HolidaysPrayerMusaf

Synopsis

Multiple variant formulations exist for the Rosh Chodesh Musaf (zikaron l'chulam hayyu/yihyu/yihye, with or without vekapparat pesha, etc.). If one mistakenly prayed the weekday Shacharit instead of Musaf, one does not fulfill the obligation and must repeat Musaf.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

Discussion coming soon.

The Daily Law

One question. Every opinion. Every morning.

A new halakhic question and the full spectrum of rabbinic thought, delivered daily.