Halakhah su Ezechiele 11:78

When the minyan prays in a synagogue its advantages are twofold, for the prayer is conducted in a place specifically designated for devarim she-bikdusha (Berakhot 6a; 8a). A synagogue is called a “small sanctuary” (“mikdash me’at,” from Yeḥezkel 11:16, which R. Yitzḥak interpreted to refer to “synagogues and study halls” [Megilla 29a]), for its holiness is a reflection of the Temple’s sanctity.