Al-Imām al-Bukhārī narrated: Narrated to us by Ādam, who said: Shu’bah narrated to us, who said: Al-Hakam narrated to us, who said: I heard Sa‘īd ibn Jubayr
from Ibn ‘Abbās (may Allāh Almighty be content with him) who said: One night I stayed at the house of my paternal aunt, whose name was Maymūnah bint Al-Hārith (may Allāh Almighty be content with her), who was one of the wives of the Prophet ﷺ. That night, the Prophet ﷺ was also present there. The Prophet ﷺ performed the ‘Isha prayer, then returned to his house. After that, he prayed four rak‘ahs (units of prayer), then went to sleep. Later he stood up and said: “Has the little boy slept?” or something similar. Then he stood for prayer again. I stood on his left side, but he moved me to the right. He then prayed five rak‘ahs, followed by two rak‘ahs, then went to sleep again, until I heard his breathing while asleep. Afterwards, he got up again to pray.
Reference: Sahih Al Bukhari 117