It was narrated that Ibn ‘Abbas (رضي الله عنه) said:

I stayed overnight with my maternal aunt Maimoonah and I said: I shall watch the prayer of the Prophet (ﷺ). A mattress was laid out for the Messenger of Allah (ﷺ) and he slept lengthwise on it and his wife slept. Then he got up halfway through the night or before that or after it and started wiping the sleep from his face. Then he recited the last ten verses of Al ‘Imran, to the end. Then he got up and went to a waterskin that was hanging and started doing wudoo’, then he stood and prayed. I got up and did what he had done, then I came and stood beside him. He put his hand on my head, then he took hold of my ear and twisted it. Then he prayed two rak'ahs, then two rak'ahs, then two rak’ahs, then two rak'ahs, then two rak’ahs, then two rak'ahs, then he prayed Witr.