Question:
If I forgot Vsachzireinu Lshalom in Tefilas Haderech on the way to a destination, do I repeat tefilas haderech on my way back home?
Answer:
Hello,
If one forgot to say vsachzireinu l'shalom in tefilas haderech, it is not repeated when coming back. The reason is because essentially all the person's travels of that day are included in his tefillas haderech.
Best wishes
Sources:
ע' כף החיים או"ח ס' ק"י סע' י"ג, פוסקים.