These answers were received from the offices of the maraje’ regarding your inquiry:
The office of the Grand Ayatullah Khamenei:
In such a case getting permission isn't necessary and the marriage contract is valid without her consent unless there are certain regulations that must be observed.
The office of the Grand Ayatullah Makarem Shirazi:
It isn't necessary for the Muslim man to get permission from his wife, but keep in mind that temporary marriage is for those who feel it is necessary for them.
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