Mount Al-Noor

Muslim pray as they visit the Hira cave at the Mount Al-Noor during their Umrah Mawlid al-Nabawi in the holy city of Mecca, Saudi Arabia

Amr Abdallah Dalsh  © ters

Muslim pray as they visit the Hira cave at the Mount Al-Noor during their Umrah Mawlid al-Nabawi “Birthday of Prophet Mohammad” in the holy city of Mecca, Saudi Arabia.

A Muslim pilgrim prays at Mount Al-Noor ahead of the annual haj pilgrimage in Mecca October 10, 2013. Mount Al-Noor houses Ghar-E-Hira or Hira cave, where Prophet Mohammad is said to have spent a great deal of time in the cave meditating and it is believed that he had received his first revelation inside this cave.

Ibraheem Abu Mustafa/Reuters

A Muslim pilgrim prays at Mount al-Noor ahead of the annual Hajj pilgrimage to Mecca on Thursday