Mamdani, who will be the first Muslim and first socialist to lead City Hall, will use at least three different sets of Islam’s holy book to take the oath of office during his private and public ceremonies Thursday, his spokesperson said.

The far-left pol is expected to use his grandfather’s Quran and one that belonged to black writer and historian Arturo Schomburg, lent by the New York Public Library, during a private midnight ceremony at the abandoned Old City Hall subway station.

During his daytime oath of office outside City Hall, he will again use his grandfather’s religious book and at least one other family Quran, the New York Times first reported and Mamdani’s rep confirmed.

State Attorney General Letitia James will swear in Mamdani at midnight while Vermont Sen. Bernie Sanders will deliver the oath of office to the democratic socialist later in the day.

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