Ezekiel 42:10-12

10In the width of the wall of the courtyard toward the east, facing the separate area and facing the building, were chambers;

11and a passage in front of them was like the appearance of the [attached] chambers on the north, and they had the same length and width, and all their exits were like both their arrangements and their entrances.

12And like the entrances of the chambers that were toward the south there was an entrance at the head of the walkway, the walkway in front of the dividing wall toward the east, as one enters them.