Ezekiel 40:28, 44, 47

Then the man took me to the south gateway leading into the inner courtyard. He measured it, and it had the same measurements as the other gateways.

Inside the inner courtyard were two rooms, one beside the north gateway, facing south, and the other beside the south gateway, facing north.

Then the man measured the inner courtyard, and it was a square, 175 feet wide and 175 feet across. The altar stood in the courtyard in front of the Temple.