New Delhi: Pakistan Tehreek-e-Insaf’s (PTI) chairman Imran Khan’s former wife Reham Khan has said in a tweet following her divorce that Quran states that Satan taught black magic to separate couples.Earlier, reports surfaced that a row over dogs led to the couple’s divorce. However, sources close to them have rejected the claim and said it was in fact Reham who used to take care of all the five dogs owned by the couple.