Ezekiel 46:21-23

21Then he brought me out into the outer courtyard and led me across to the four corners of the courtyard; and behold, in every corner of the courtyard there was a small courtyard.

22In the four corners of the courtyard there were enclosed courtyards, forty 1cubits long and thirty wide; these four in the corners were 2the same size.

23And there was a row of masonry all around in them, around the four of them, and cooking hearths were made under the rows all around.