If one finishes Baruch She'amar before the prayer leader (chazzan), does one respond Amen after the chazzan finishes?

Synopsis

The Mechaber rules one responds Amen if one finished before the chazzan. The question of whether one responds when finishing simultaneously is disputed among Magen Avraham, Mishnah Berurah, and Aruch HaShulchan.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

Discussion coming soon.

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