He Made a Contract With His Wife using a Borrowed Name
Question :
I made a marriage contract with my wife using a borrowed name, which is the name of her deceased sister, due to the fact that my wife's birth is not registered and we do not know her age. What is the ruling on this?
Answer:
Such an action should not be taken, because of the lying entailed by it, which is her identifying herself by her sister's name and this is a lie. As regards the contract, it is correct, because it took place in specific circumstances known to the guardian, the groom and the woman with whom the marriage was contracted. However, we advise our brothers and warn them against achieving their objectives through lies and cheating, because this is the way of the hypocrites. And we advise him to go to the registrar of marriages and change the woman's name to the true name. And Allah knows best.
Source:
Ibn 'Uthaimin
Fatawa Islamiyah, Vol. 5 Pages 254
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