One of the recognized principles of this religion is consideration of the consequences of actions. It is through studying what an action can result to that its rule is known . Something can be primarily lawful and yet prohibited because of its evil results. Every act that leads to an unlawful thing is also unlawful.
Friday Sermon from the Prophet's Mosque in Madina, on 24th Shawwaal 1421AH: ...Scholars of Islaam...are to the earth what the stars are to the heaven. It is through them that the confused get guidance and peoples need of them is greater than their need of food and drink...