Malik spoke about a person who confessed to fornication and then retracted it and said, "I didn't do it. I said that for such-and-such a reason," and he mentioned the reason. Malik said, "That is accepted from him and the hadd is not imposed on him. That is because the hadd is what is for Allah, and it is only applied by one of two means, either by a clear proof which establishes guilt or by a confession which is persisted in so that the hadd is imposed. If someone persists in his confession, the hadd is imposed on him."
Malik said, "I have not seen the people of knowledge exiling slaves who have committed adultery."
Arabic : Book 41, Hadith 1515