Dr. Monzer Kahf, a prominent economist and counselor states: No matter what one does in these types of companies, one remains tainted with interest. We must remember that The Prophet, pbuh, warned us of this kind of situation in his Saying that there will be a time when even those who avoid Riba they will be touched by its dust. I suggest that a finance manager should observe two basic principles in this regard. One, he must avoid signing or authorizing any interest-based contract because that is covered by the expel from the Mercy of God (the La`nah) that is mentioned in an authentic Saying. Second, he should apply the majority rule. If most of what he does relates directly to interest his job becomes non-permissible but if the majority of his time is used for permissible transactions his job becomes permissible.”