Could you please advise how to give a girl dawah. She has left her home,possibly under the effect of sihr, and her family believes she may be cohabiting with a kaafir boy. She has left home a few times, comes back and goes again.She has no contact with her parents but occasionally emails her siblings…How could her brother/sister try to bring her back to the folds of Islaam? (bi ithnil lâh).