If the residents of a courtyard and the residents of a gallery forgot to make an eruv, whatever is ten fists high [belongs] to the gallery; less than that, to the courtyard. The embankment around a pit or a rock which is ten fists high [belongs] to the gallery; less than that, to the courtyard. To what do these words apply? To that which is near; but that which is at a distance, even if it is ten fists high, [belongs] to the courtyard. And what is [considered] near? Whatever is not four fists away.