Mansur reported from Al-Hakam, from Miqsam, that Umm Salamah said: The Messenger of Allah (ﷺ) used to pray witr with five and seven rak'ahs which he did not separate with any taslim nor talk.
Mansur reported from Al-Hakam, from Miqsam, from Ibn 'Abbas that Umm Salamah said: The Messenger of Allah (ﷺ) used to pray witr with seven or five (rak'ahs), not separating between them with the taslim.
Sufyan bin Al-Husain narrated from Al-Hakam that Miqsam said: Witr is seven and no less than five. I mentioned that to Ibrahim and he said: From whom did he quote that? I said: I do not know. Al-Hakam said: Then I performed Hajj and I met Miqsam and said to him: 'From whom (did you narrate that)?' He said: 'From the trustworthy one, from Aishah and from Maimunah.'
Hisham bin Urwah narrated from his father, from Aishah, that: The Prophet (ﷺ) used to pray witr with five and he did not sit except in the last (rak'ah) of them.