Ezekiel 42:7-9

New King James Version

⁷ And a wall which was outside ran parallel to the chambers, at the front of the chambers, toward the outer court; its length was fifty cubits. ⁸ The length of the chambers toward the outer court was fifty cubits, whereas that facing the temple was one ^(A)hundred cubits. ⁹ At the lower chambers was the entrance on the east side, as one goes into them from the outer court.