May two Jews whose houses share only windows (but no door) make an eruv through those windows when a non-Jew also lives in the courtyard?

ShabbatEruvin

Synopsis

The Mechaber rules that if one Jew's house does not open to the courtyard (only to a neighboring Jew's house via windows), they may not make an eruv through the windows to carry via the neighbor's house — though if there is a doorway between them, it is permitted. A minority view (Rashi) forbids even when there is a doorway.

Rishonim
Early Acharonim
Lenient
Strict
Lesser cited
Major authority

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