Shemot 16:1-2

Orthodox Jewish Bible

16 And they took their journey from Elim, and kol Adat Bnei Yisroel came unto the midbar of Siyn (pronounced "Seen"), which is between Elim and Sinai, on the fifteenth day of the second month after their departing out of Eretz Mitzrayim.

² And kol Adat Bnei Yisroel murmured against Moshe and Aharon in the midbar;