A Saudi billionaire has donated two-thirds of his wealth to charity. Forbes Magazine estimates the wealth of Saudi business tycoon Shaikh Suleiman bin Abdulaziz Al Rajhi at $7.7 billion. Al Rajhi has worked as a porter, cleaner, cook, café servant and office boy in a bank. Forbes magazine has ranked him as the Arab world's fifth richest man. He is the founder of Al-Rajhi Bank, the largest Islamic bank in the world, and one of the largest companies in Saudi Arabia.