Exodus 12:19

For seven days no leaven is to be found in your houses . If anyone eats what is leavened , that person will be cut off from the congregation of Israel , whether he is a sojourner or a native of the land .

For seven days no yeast is to be found in your houses. And anyone, whether foreigner or native-born, who eats anything with yeast in it must be cut off from the community of Israel.

Seven days shall there be no leaven found in your houses : for whosoever eateth that which is leavened, even that soul shall be cut off from the congregation of Israel, whether he be a stranger, or born in the land.