וּבַחֲמִשָּׁ֨ה עָשָׂ֥ר י֛וֹם לַחֹ֥דֶשׁ הַזֶּ֖ה חָ֑ג שִׁבְעַ֣ת יָמִ֔ים מַצּ֖וֹת יֵאָכֵֽל׃
And on the fifteenth day of this month shall be a feast; seven days shall unleavened bread be eaten.
Targum Jonathan on Numbers
On the fifteenth day of this month is a festival; seven days shall unleavened be eaten.