This document discusses the concept of mudarabah, a type of partnership in Islamic finance. In a mudarabah, one partner provides capital while the other provides management and labor. Profits are shared according to a predetermined ratio, while losses are absorbed by capital first. There are two types of mudarabah - restricted and unrestricted - which differ in how much freedom the mudarib is given to make investment decisions. The document outlines rules around profit and loss distribution, duties of each partner, and circumstances under which the mudarabah contract can be terminated.