Ayatollah Khamenei Attends Arbaeen Mourning Ceremony September, 17, 2022 - 12:33 TEHRAN (Tasnim) – Leader of the Islamic Revolution Ayatollah Seyed Ali Khamenei attended a mourning ceremony, held in Tehran on Saturday, September 17, to mark Arbaeen, the 40th day after the martyrdom anniversary of Imam Hussein (AS).