A Turkish Muslim woman prays inside Hiraa cave, where according to Muslim teachings the Prophet Muhammad received his first revelation from God to preach Islam, on Noor Mountain outside Mecca, Saudi Arabia, Sept. 9, 2016. Nariman El-Mofty/AP Photo

Women cry after reaching the Kaaba, Islam's holiest shrine, at the Grand Mosque in the Muslim holy city of Mecca, Saudi Arabia, Sept. 8, 2016. Millions of Muslims have arrived in the kingdom to participate in the annual hajj pilgrimage, which starts Saturday, a ritual that Islam requires all able-bodied adherents to perform at least once in their lives. Nariman El-Mofty/AP Photo

An elderly Indian woman leads her husband as they circle the Kaaba, Islam's holiest shrine, at the Grand Mosque in the Muslim holy city of Mecca, Saudi Arabia, Sept. 8, 2016. Muslim pilgrims have begun arriving at the holiest sites in Islam ahead of the annual hajj pilgrimage in Saudi Arabia, with some weeping with their hands outstretched for a fleeting touch of the Kaaba. The cube-shaped shrine, at the center of Mecca's Grand Mosque, is the site the world's 1.6 billion Muslims pray toward five times a day. Nariman El-Mofty/AP Photo

An Egyptian woman prays inside the women's camp in Arafat during the annual hajj pilgrimage, near the holy city of Mecca, Saudi Arabia, Sept. 11, 2016. Nariman El-Mofty/AP Photo

Saudi women cast stones at a pillar symbolizing the stoning of Satan, in a ritual called "Jamarat," the last rite of the annual hajj, in Mina near the holy city of Mecca, Saudi Arabia, Sept. 13, 2016. Nariman El-Mofty/AP Photo

Dalia, 36, from Lebanon takes off her hijab to start performing Wudu, a ritual of washing before prayer, inside an only women's camp in Mina, Saudi Arabia, Sept. 13, 2016. Nariman El-Mofty/AP Photo

A Muslim woman prays on a rocky hill known as Mountain of Mercy, on the Plain of Arafat, during the annual hajj pilgrimage, ahead of sunrise near the holy city of Mecca, Saudi Arabia, Sept. 11, 2016. Mount Arafat, marked by a white pillar, is where Islam's Prophet Muhammad is believed to have delivered his last sermon to tens of thousands of followers some 1,400 years ago, calling on Muslims to unite. Nariman El-Mofty/AP Photo

A woman holds her mother as they circle the Kaaba, Islam's holiest shrine, at the Grand Mosque in the Muslim holy city of Mecca, Saudi Arabia, Sept. 8, 2016. Nariman El-Mofty/AP Photo

Mariam Abdel Karim, 60, from Sudan poses for a photograph as she prays on a rocky hill known as the Mountain of Mercy, on the Plain of Arafat, during the annual hajj pilgrimage, near the holy city of Mecca, Saudi Arabia, Sept. 11, 2016. Karim walked from Medina to Mecca to Arafat and will complete her pilgrimage by walking. Nariman El-Mofty/AP Photo

A woman climbs toward the top of Mount Al-Noor ahead of hajj at the holy city Of Mecca, Saudi Arabia, Sept. 7, 2016. Fazry Ismail/EPA

A Muslim woman prays near the Hira cave at the Mount Al-Noor ahead of hajj at the holy city Of Mecca, Saudi Arabia Sept. 7, 2016. Fazry Ismail/EPA

Women touch the Kaaba, Islam's holiest shrine, for blessing at the Grand Mosque in the Muslim holy city of Mecca, Saudi Arabia, Sept. 8, 2016. Nariman El-Mofty/AP Photo

An Acehnese child stands as Acehnese women pray during morning prayers held to celebrate Eid al-Adha (Feast of the Sacrifice) at Blang Padang Park, Banda Aceh, Indonesia, Sept. 12, 2016. Eid al-Adha is the holiest of Muslim holidays and marks the yearly Muslim pilgrimage, the hajj, to visit Mecca, the holiest place in Islam. Hotli Sunabhybtaj/EPA

A Palestinian woman prays at al-Aqsa Mosque on the last day of the Muslim festival of Eid al-Adha in the old city of Jerusalem, Sept. 15, 2016. Eid al-Adha is the holiest of the Muslim holidays celebrated each year and marks the yearly Muslim pilgrimage, the hajj, to visit Mecca, the holiest place in Islam. Muslims slaughter a sacrificial animal and split the meat into three parts, one for the family, one for friends and relatives, and one for the poor and needy. Alaa Badarneh/EPA