Khalifa, The Custodian of the Two Holy Mosques exchange Ramadan greetings Posted on July 20, 2012 by Web Desk Abu Dhabi: President His Highness Sheikh Khalifa bin Zayed Al Nahyan exchanged today over phone the Ramadan greetings with The Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud, of Saudi Arabia.