A Muslim pilgrim reads the Koran as he attends Friday prayers at the Grand mosque in the holy city of Mecca ahead of the annual haj pilgrimage in this October 11, 2013 file photo. Saudi Arabia and Kuwait have been quietly reining in their clerics on concerns that preachers could use their influence to stir up trouble and inflame sectarian divisions at a time of high tension over the crises in Syria and Egypt. To match Feature GULF-CLERICS/ REUTERS/Ibraheem Abu Mustafa/Files (SAUDI ARABIA - Tags: