Sheikh Ahmed el-Tayeb, the grand imam of Egypt's Al-Azhar, left, welcomes Pope Francis ahead of a private meeting with members of the Muslim council of elders, at the Grand Mosque of Sheikh Zayed, in Abu Dhabi, United Arab Emirates, Monday, Feb. 4, 2019. Francis' speech to the gathering of faith leaders on Monday evening is to be the highlight of his brief, 40-hour visit to Abu Dhabi, the first to the Arabian Peninsula by a pope. (AP Photo/Andrew Medichini)