Custodian of the Two Holy Mosques King Abdullah Bin Abdull Aziz is due later on Monday to put foundation stones for the largest expansion for Prophet\'s Mosque to accommodate almost 2.8 million worshippers, local Media reported today. The project will encompass three levels; the first will accommodate more than 800,000 people, the second and the third levels will have room for an additional number of more than 800,000 persons. The venture is complementary to other projects that the Custodian of the Two Holy Mosques ordered to facilitate performing the religious rituals for Prophet\'s Mosque visitors