Dr. Monzer Kahf, a prominent economist and counselor states: There is nothing in the Qur’an and Sunnah that determines the degree of tolerance of the Haram. This is why the majority argue that it is not permissible to buy any stock whose company does any Haram. The principle is that only zero Haram is tolerated. On the other hand, the minority’s view is based on the great inconvenience that such a view cause to a large number of Muslims, it calls for relaxation of the rule to a degree that removes this great inconvenience. This is why scholars differ on the conditions.