Mukhtasar Bukhari

Sayyiduna Nu’man bin Bashir (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings of Allah be upon him) said: “The lawful is clear and the unlawful is clear, and between them are doubtful matters. So whoever leaves that in which he suspects there is sin, he will also leave that which is clearly and openly sinful. And whoever dares to do that in which there is doubt of sin, soon he will fall into that which is clearly sinful. And sins are the protected pastures of Allah Almighty; whoever grazes around the pasture (i.e., sins), soon he will enter into that pasture as well.”