Ezekiel 42:7-9

New Catholic Bible

⁷ There was an outer wall parallel to the chambers that extended out toward the outer court; it was fifty cubits long. ⁸ The chambers facing the outer court were fifty cubits long, while those facing the temple were one hundred cubits long.

⁹ Below these chambers there was a passage that one entered from the east so that one could enter them from the outer court.