On behalf of the Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al Saud, the Crown Prince Mohammed bin Naif bin Abdulaziz, Deputy Prime Minister, Minister of the Interior, Chairman of Hajj Supreme Committee and Chairman of the Higher Supervisory Committee for Institute of the Custodian of the Two Holy Mosques for Hajj and Umrah Research, will open tomorrow, on Wednesday the 15th Scientific Forum on Hajj and Umrah Research, hosted by the University of Umm Al-Qura represented in the Custodian of the Two Holy Mosques Institute for Hajj and Umrah Research in collaboration with the Research and Consulting Institute of Taibah University in Madinah. The Forum will last for two days.