Why does the Torah need to add that Machaneh Yisrael stretched "from Beis Hayeshimos till Aveil ha'Shitim"?
Rashi: To teach us that the Camp of Yisrael was twelve Mil (three Parsah) long. 1
Rashi: As Rabah bar bar Chanah testified in Eruvin, 55b).
What is the exact translation of "Aveil ha'Shitim"?