2 Chronicles 4:2, 6, 14-15

Also he made the cast metal sea, ten cubits from brim to brim, circular in form, and its height was five cubits and its circumference thirty cubits.

He also made ten basins in which to wash, and he set five on the right side and five on the left to rinse things for the burnt offering; but the sea was for the priests to wash in.

He also made the stands and he made the basins on the stands, and the one sea with the twelve oxen under it.