Sunan an-Nasa'i 1716

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