Partners who agreed to the partition of a courtyard build the wall in the middle. Wherever they are accustomed to build [with] untrimmed stones, [or] hewn stones, [or] half-bricks, [or] bricks, they build; all in accordance with the custom of the province. For untrimmed stones, each one provides three handbreadths; for hewn stones, each one provides two and a half hand-breadths; for half-bricks, each one provides two handbreadths; for bricks, each one provides one and a half handbreadths. Therefore, if the wall fell, the place and the stones belong to both of them.