if a husband marries himself with male witness for himself and a female witness for the bride is the marriage valid?
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The jurists stated that the testimony of a person is not valid for his own self. Therefore, if the Ma’athoon (the marriage registrar) conducts the marriage contract in a way that he is one of the two contracting parties (i.e. he is deputized by either party), then it is not permissible for him to be one of the two witnesses to the marriage contract, because, in this case, he would be a witness to what he himself has done.
As-Saawi from the Maaliki School of jurisprudence, said: “The testimony of a Mutawalli (trustee of an endowment and the like) is not valid because it is a testimony of what he himself has done.”
The fact that the husband knows him or does not know him does not change the ruling.
On the other hand, if he is just authenticating the marriage, then it is permissible to consider him as a witness.