Ayatollah Khamenei the Supreme Leader of the Islamic Revolution met Tuesday morning with a group of government officials, foreign participants of the 26th Conference on Islamic Unity, ambassadors of Islamic countries and people from different social backgrounds. Speaking at the meeting, which was held on the auspicious occasion of the birthday anniversaries of the Holy Prophet (s.w.a.) and Imam Sadiq (a.s.), His Eminence described Islamic unity as a sacred slogan. He also described unity of the Islamic Ummah as the most important message of the Holy Prophet's (s.w.a.) mission.