Analogy of the Opposite.

The Shaykh : This serves as a reminder of what jurists call the analogy of the opposite in this case—meaning, in the hadith of Abu Dharr (may Allah be pleased with him)—a reminder of the analogy of the opposite. This is establishing the negation of the ruling of the original case in the opposite of the original case due to the departure of the operative cause. Here, the operative cause for a person being rewarded when he comes to his wife is that he placed her in what is lawful and placed his desire in what is lawful. The negation of this operative cause is that if he places his desire in what is forbidden, he is punished for it. This is what scholars call the analogy of the opposite, because analogy has types: analogy of cause, analogy of indication, analogy of similarity, and analogy of the opposite. And success is from Allah.