Playback speed
MB3 44a: Friday Night Tefillah Laws (268:6-10)
What if you said the wrong Shabbos amidah? What if you said one of the other tefilot at Musaf or vice-versa? Saying Vayechulu after the amida on Friday night together with the rest of the tzibur. The tefillah of Me'ein Sheva.