Vani claimed that the disproportionate destruction of Jewish property in the Great Fire was a sign of divine displeasure. He supported legislation barring them from returning to the area. Köprülü Fazıl Ahmed confiscated all the lands where synagogues had stood and auctioned them. Non-Muslims were forbidden from bidding on the properties. Turhan Sultan sponsored the construction of the New Mosque. It opened in 1665 and Vani Mehmet Efendi became its first preacher.
