Chapter: How was the Salat of the Prophet (pbuh) and how many Raka he used to offer at night?

A man said, "O Allah's Messenger (ﷺ)! How is the prayer of the night?" He said, "Two rak`at followed by two rak`at and so on, and when you apprehend the approaching dawn, offer one rak`a as witr."

The prayer of the Prophet (ﷺ) used to be of thirteen rak`at, i.e. of the night prayer.

I asked Aisha about the night prayer of Allah's Messenger (ﷺ) and she said, "It was seven, nine or eleven rak`at besides the two rak`at of the Fajr prayer (i.e. Sunna). "

The Prophet (p.b.u.h) used to offer thirteen rak`at of the night prayer and that included the witr and two rak`at (Sunna) of the Fajr prayer.