Syrian Jews are most visible in the Once district, where there are many community schools and temples. For some decades there has been a good-natured rivalry between the Shami (Damascene) community of "Shaare Tefila (Pasito)" synagogue and the Halebi (Aleppan) community of "Sucath David" across the street. The most influential rabbinic authority was Rabbi Isaac Chehebar from the "Yessod Hadat" congregation on Lavalle street; he was consulted from all across the globe, and had an influential role in the recovery of parts of the Aleppo Codex.