Five courtyards which open one into the other and into an alley — if they made an eruv in the courtyards but did not make a shituf in the alley, they are permitted in the courtyards but prohibited in the alley; if they did make a shituf in the alley, they are permitted here and there. If they made an eruv for the courtyards and a shituf for the alley, but one of the residents of the courtyard forgot to contribute to the eruv, they are permitted here and there; if one of the residents of the alley did not participate in the shituf, they are permitted in the courtyards, but are prohibited in the alley; for an alley is to the courtyards as a courtyard is to the houses.

Two courtyards one behind the other — if the inner made an eruv but the outer did not, the inner is permitted while the outer is prohibited; the outer, but not the inner, both are prohibited; each courtyard made its own eruv, [then] each is individually permitted. R’ Akiva prohibits the outer, because the right of passage restricts it. But the Sages say: The right of passage does not restrict it.