The Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al Saud has received a cable of congratulation from Sultan Haitham bin Tariq bin Taimur of the Sultanate of Oman on the occasion of the 90th Saudi National Day. The Sultan expressed his sincere congratulations and best wishes of constant good health to the Custodian of the Two Holy Mosques. He also wished the Saudi people further progress and prosperity.