4. Allah has not put for any man two hearts inside his body. Neither has He made your wives whom you declare to be like your mothers' backs, your real mothers. [Az-Zihar is the saying of a husband to his wife, "You are to me like the back of my mother" i.e. You are unlawful for me to approach.], nor has He made your adopted sons your real sons. That is but your saying with your mouths. But Allah says the truth, and He guides to the (Right) Way.