‘A’isha said that God’s Messenger used to pray sitting, and would recite the Qur’an while sitting; then when about thirty or forty verses of his recitation remained he stood up and recited while standing. Then he bowed, then he prostrated himself, and after that he did the same kind of thing in the second rak'a.
‘A’isha said that God’s Messenger used to observe a witr with one rak'a, then he performed two rak'as reciting the Qur’an in the course of them seated. When he wished to bow, he stood up and bowed.
Nafi' said, “I was with Ibn ‘Umar in Mecca when the sky was cloudy and he was afraid the morning might have come, so he observed a witr with one rak'a. The sky then cleared and he saw that it was still night, so he made it a pair by praying one rak'a; then he prayed series of two rak'as, and when he was afraid morning was near he observed a witr with one.”
