'Aisha and 'Abdullah bin 'Abbas · Witr Prayer

Allah's Messenger (ﷺ) used to pray eleven rak`at at night and that was his night prayer and each of his prostrations lasted for a period enough for one of you to recite fifty verses before Allah's Messenger (ﷺ) raised his head. He also used to pray two rak`at (Sunnah) before the (compulsory) Fajr prayer and then lie down on his right side till the Mu'adh-dhin came to him for the prayer.

Allah's Messenger (ﷺ) offered witr prayer at different nights at various hours extending (from the `Isha' prayer) up to the last hour of the night.

The Prophet (ﷺ) used to offer his night prayer while I was sleeping across in his bed. Whenever he intended to offer the witr prayer, he used to wake me up and I would offer the witr prayer too.