The Lajnah (Permanent Committee for Scholarly Research and Ifta’) was asked:
Is it allowed to perform the marriage contract in a church? Is it allowed perform the marriage contract twice; once according to the Islamic method and another according to the Christian method? That is in order to please both sides/parties.
“It is not allowed to perform a marriage inside a church and the Islamic marriage contract is sufficient. It is not allowed to perform another contract.
And with Allah is Tawfeeq. May peace and blessings be upon our Prophet Muhammad, his followers, and Companions”.
[Fatwa no. 11967]
Faisal Ibn Abdul Qaadir Ibn Hassan