Tehran: The message of Leader of the Islamic Revolution Ayatollah Sayyid Mojtaba Hosseini Khamenei on the occasion of Unity Week will be released on Sunday. According to Islamic Republic News Agency, the message from Ayatollah Khamenei will commemorate the auspicious birth anniversaries of the Holy Prophet (PBUH) and Imam Sadiq (AS). It will be made public concurrently with its recitation at the closing ceremony of the International Islamic Unity Conference.