Dr. Monzer Kahf, a prominent economist and counsellor states: “If the income of one’s parents is entirely Haram (e.g., they are a professional thief or drug smuggler or a male/female prostitute) as an adult male or female one is required to work and earn on their own and they can’t take any of their parent’s money for living expenses, a proper muslim cannot live on such income that really is not owned by their parents according to Shari’ah, let alone paying for education and hajj! But if one’s parent’s income is from working in a bank for example, whereby it can’t be determined precisely if the earning is halal or not, then the story is different. Determining that it is Haram needs to be re-investigated and studied!”