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 cubits long and thirty wide; these four in the corners were the same size.

23There was a row of masonry all around inside them, around [each of] the four courtyards, and it was made with cooking hearths under the rows all around.