The Prophet ﷺ, when he commanded the Mutalaineen to perform the mutual oath of condemnation, instructed a man to place his hand over the mouth of each of them at the fifth oath, telling them that it is the one that brings the punishment.
حدثنا مخلد بن خالد الشعيري حدثنا سفيان عن عاصم بن كليب عن أبيه
أن النبي ﷺ أمر رجلا حين أمر المتلاعنين أن يتلاعنا أن يضع يده على فيه عند الخامسة يقول إنها موجبة
[Sahih] Recorded by Nasai in the Book of Divorce, the chapter on the command to place the hand over the mouth of the two spouses engaged in mutual imprecation (mulaana) at the fifth oath, hadith no. 3502, from the hadith of Sufyan, with this wording. The basic hadith has supporting narrations. Hadith no.