His Excellency the Dean of the Custodian of the Two Holy Mosques Institute for Hajj and Umrah Research and His Excellency the Head of the Department of Administrative and Human-Related Research at the Institute attended the inauguration of Al-Sahabah [Prophet's Companions (may Allah be pleased with them)] Exhibition at Jabal Omar Project, which is held under the patronage of His Royal Highness the Advisor to the Custodian of the Two Holy Mosques and the Emir of Makkah Region, Prince Khalid Al-Faisal. This took place in the presence of His Royal Highness the Deputy Emir of Makkah Region, Prince Bandar bin Sultan.