במדבר לג:ג תרגום: תרגום יונתן וTargum Jerusalem

They departed from Pelusin in the month of Nisan, on the fifteenth day of the month; after they had eaten the sacrifice of the Pascha did the children of Israel go forth, with uncovered head, in sight of all the Mizraee.

And they went out from Pelusin in the first month.