AlQa'dah 17, 1436, September 01, 2015, SPA -- The Vice Custodian of the Two Holy Mosques Prince Mohammed bin Naif bin Abdulaziz has sent a cable of congratulations to President Andrej Kiska of Republic of Slovakia on the anniversary of his country's Constitution Day. In his cable, the Prince wished the President constant good health and happiness and his people steady progress and prosperity.