She apostatized and married a Christian; now she has returned to Islam and has left that Christian man – how long is her ‘iddah?

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He was away from his wife for a year, then he divorced her. Does she have to observe the ‘iddah?
He wants to marry a non-Muslim woman who became Muslim, but her husband has not divorced her

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He was away from his wife for a year, then he divorced her. Does she have to observe the ‘iddah?
He wants to marry a non-Muslim woman who became Muslim, but her husband has not divorced her

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