Ezra 6:16-20

And the sons of Israel, the priests, the Levites, and the rest of the exiles, celebrated the dedication of this house of God with joy.

They offered for the dedication of this temple of God a hundred bulls, two hundred rams, four hundred lambs, and as a sin offering for all Israel twelve male goats, corresponding to the number of the tribes of Israel.

Then they appointed the priests to their divisions and the Levites in their sections for the service of God in Jerusalem, as it is written in the Book of Moses. The Passover Held

The exiles held the Passover on the fourteenth of the first month.

For the priests and the Levites had purified themselves together; all of them were pure. Then they slaughtered the Passover lambs for all the exiles, both for their brothers the priests and for themselves.