Question:
When davening mariv I said the brocho (starting v’yatsiv from scharis krias shema) up to and including the brocho gal yisroel. What should be done?
Answer:
The halacha is that since you already finished saying the bracha you do not go back since the main parts of the bracha (yetzias metzrayiom, kriyas sam yuf etc.) were actually said.
Sources:
M:B 66-53
