She was asked about the witr of the Messenger of Allah ﷺ, and she replied that he performed witr at all times of the night. He prayed it at its beginning, in its middle, and toward the end of his life his witr settled at the time before dawn.
حدثنا أبو بكر بن أبي شيبة حدثنا أبو بكر بن عياش عن أبي حصين عن يحيى بن وثاب عن مسروق قال
عن وتر رسول الله ﷺ فقالت من كل الليل قد أوتر من أوله وأوسطه وانتهى وتره حين مات في السحر
Muslim narrated it in Salat al-Musafirin, chapter on the night prayer and the number of the units the Prophet ﷺ performed, etc., hadith 745b, from the hadith of Abu Husayn, in the same manner.