The Ruling on Marriage by Correspondence or via the Telephone
Is marriage via the telephone or by correspondence binding and accepted? Meaning that the father gives his daughter in marriage via telephone or via a specific letter?
Marriage is not contracted via the telephone, nor by correspondence; rather, the husband and the (brides) guardian must attend, along with the witnesses - and this cannot be completed via the telephone or by correspondence. Yes, it might be completed through correspondence, if the contractor appoints a proxy to contract it for him ý if he is in another country. In these circumstances, it is required that the document appointing the proxy be an authorized document, as established by the Islamic Law.
Shaykh Muhammad bin Saalih al-`Uthaymeen
Fatawa Islamiyah Vol. 5 Page 188