Sunan Abi Dawud Book 5, Hadith 107
I spent a night with my maternal aunt Maimunah. The Messenger of Allah (ﷺ) came after the evening has come. He asked: Did the boy pray ? She said: Yes. Then he lay down till a part of night had passed as much as Allah willed; he got up, performed ablution and prayed seven or five rak'ahs, observing witr with them. He uttered the salutation only in the last of them.
I spent a night with the Prophet (ﷺ) to see how he prayed. He got up, performed ablution and prayed two rak'ahs. His standing was like his bowing (i.e. equal in duration), and his bowing was like his prostration (equal in length). Then he slept. Afterwards he awoke, performed ablution, and used tooth-stick. He then recited five verses from Surah Al-'Imran : "In the creation of the heavens and the earth and the alternation of night and day". He went on doing so till he prayed ten rak'ahs. He then stood up and prayed one rak'ah observing witr with it. In the meantime the mu'adhdhin called to prayer. The Messenger of Allah (ﷺ) stood up after the mu'adhdhin had kept silent. He prayed two light rak'ahs and remained sitting till he offered the dawn prayer.
Abu Dawud said: A part of the tradition transmitted by Ibn Bashshar remained hidden from me.
I spent a night in the house of my maternal aunt Maimunah, daughter of al-Harith. The Prophet (ﷺ) offered the night prayer. He then came and prayed four rak'ahs and slept. He then stood up and prayed. I stood at his left side. He made me go round and made me stand at his right side. He then prayed five rak'ahs and slept, and I heard his snoring. He then got up and prayed two rak'ahs. Afterwards he came out and offered the dawn prayer.