Does using kinship terms for one's wife establish the ruling of Zihar?

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Using kinship terms such as 'sister' for one's wife does not establish the ruling of *Zihar*, and the wife does not become forbidden (*tahrum*) to him by this utterance. This is proven because the Prophet, peace be upon him, did not tell the speaker that his wife was forbidden to him. Furthermore, the utterance is neither explicit (*sarih*) in *Zihar* nor was it intended as such, thus the prohibition does not take effect.