Sheikh Ahmad Kutty, a senior lecturer and Islamic scholar at the Islamic Institute of Toronto, Ontario, Canada, states: “If there is a reasonable ground for suspicion that someone may be selling stolen goods, then no Muslim is allowed to buy such things from him. Islam forbids theft and considers it a major sin. While forbidding a sin, Islam also forbids everything that directly leads to it; to aid and abet a sin is also considered equally sinful.
Furthermore, Islam teaches us that as Muslims we must not only shun what is purely haram (unlawful) but also everything that is doubtful and dubious. The Prophet (peace and blessings be upon him) said, Halal (lawful) is clear, and haram is clear, and there are some doubtful cases in between; so whosoever avoids that which is doubtful guards his religion and honor; but whosoever commits what is considered doubtful may eventually fall in what is haram.”