There is an authentic hadith that the night prayer is prayed in pairs of two, which on its surface means one says the closing salam after every two rak'ahs, whereas the hadith of 'Aishah is contrary to this.

Question : Shaykh, may Allah bless you. There is a hadith, and it is authentic, that the night prayer is in pairs, and this is the rule for the night prayer. So on its surface, Shaykh, it means that whenever one prays two rak'ahs, he says the salam. And in that case, Shaykh?

Answer : This would be an exception; the witr would be an exception. It is clear, because it is permissible to specify the general. Yes.