Exodus 27:12 KJV
And for the breadth of the court on the west side shall be hangings of fifty cubits: their pillars ten, and their sockets ten.
Exodus 27:12, King James Version
In context
11 And likewise for the north side in length there shall be hangings of an hundred cubits long, and his twenty pillars and their twenty sockets of brass; the hooks of the pillars and their fillets of silver.
12 And for the breadth of the court on the west side shall be hangings of fifty cubits: their pillars ten, and their sockets ten.
13 And the breadth of the court on the east side eastward shall be fifty cubits.