If someone while having sex swallows the sperm because imam shafi is of the opinion that it’s clean?

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If someone while having sex swallows the sperm because imam shafi is of the opinion that it’s clean?
The ruling over sperm is that it’s ‘najasati ghaliza’ which is the highest for of impurity. According to the law even the oral sex is not allowed.
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This answer was collected from Shariahboard.org. It was established under the supervision of the eminent faqih of our era, Hazrat Shah Mufti Mohammed Navalur Rahman damat barakatuhum.

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