Is it obligatory to perform the Witr prayer before sleeping if the worshipper will wake up for Qiyam al-Layl and then Fajr?

The time for Witr prayer is between the 'Isha prayer and the Fajr prayer. A woman is not required to perform Witr at the aforementioned time. The Prophet, peace and blessings be upon him, forbade two Witr prayers in one night. Delaying Witr until the last part of the night is preferable for one who is able to wake up, and for one who cannot, it is sunnah for him to perform Witr before sleeping. If a person wakes up and wishes to perform supererogatory prayers, it is permissible for him to do so, but he should not perform Witr again because he already performed Witr before sleeping.