VATICAN CITY, VATICAN - MAY 23: (L-R) Cardinal Jean-Louis Tauran, Grand Imam of Al-Azhar, Sheik Ahmed Muhammad Al-Tayyib and Pope Francis during an audience at his private library in the Apostolic Palace on May 23, 2016 in Vatican City, Vatican. Ahmed Mohamed Al-Tayyib is the current Grand Imam of al-Azhar of Egypt and former president of al-Azhar University in Cairo, centre of Islamic scholarship. (Photo by Vatican Pool/Getty Images)
