Here is the short version : Abdur Rahman ibn Awf was the most richest Muslim to walk the earth, not only with his wealth but with his actions and deeds. He is an exemplary study for every person who wants to excel in business.
One of the most powerful quotes of Abdur Rahman ibn Awf was made to Sad ibn ar-Rabi’ah; when he offered to shared half of what he had with Abdur Rahman who said:
“May God bless you in your family and your wealth. But just show me where the market is..”
If you really want to learn what he did and paths he taken, here is a “Must read”, most detailed Abdur Rahman ibn Awf Biography on his business empire, from starting to Scaling a business from scratch.