Richest Malaysian?

full of love

Pehin Sri wealth worth as USD15B? amazing amount of wealth. if this is a really Pehin Sri wealth, he is becomig the Melanau richest man in the world. also, the richest citizens of Malaysia. but, is there a prove that wrote that Pehin Sri is really rich?
Forbes, the world most famous magazine that ranked people all around the globe through their research. they are calculated the wealth of the people without prejudiced.but, they are not putting Pehin Sri in their list. why?
and if Pehin Sri wealth as shown, he is really a proud of melanau community. if we want to be rich like Pehin Sri we need to follow his steps. from zero to billionaire.