NumNm. NumbersNúmeros, chaptercapítulo Book of NumbersLibro de los Números, chaptercapítulo 33

And they departed from Ra'meses in the first month, on the fifteenth day of the first month; on the day after the Pesach the Bnei Yisroel went out with a yad ramah (upraised hand, i.e., confidently) l'einei kol Mitzrayim.