“Aishah narrated to me that the Messenger of Allah ﷺ prayed Witr with one Rak’ah, then he prayed two Rak’ah in which he recited while sitting, then when he wanted to bow, he stood up and bowed.”
كَانَ رَسُولُ اللَّهِ ﷺ يُوتِرُ بِوَاحِدَةٍ ثُمَّ يَرْكَعُ رَكْعَتَيْنِ يَقْرَأُ فِيهِمَا وَهُوَ جَالِسٌ فَإِذَا أَرَادَ أَنْ يَرْكَعَ قَامَ فَرَكَعَ
I asked 'A'isha how the Messenger of Allah ﷺ did in the two rak'ahs as he (observed them) sitting. She said: He would recite (the Qur'an) in them, and when he intended to bow, he would stand up and then bowed.
قُلْتُ لِعَائِشَةَ كَيْفَ كَانَ يَصْنَعُ رَسُولُ اللَّهِ ﷺ فِي الرَّكْعَتَيْنِ وَهُوَ جَالِسٌ قَالَتْ كَانَ يَقْرَأُ فِيهِمَا فَإِذَا أَرَادَ أَنْ يَرْكَعَ قَامَ فَرَكَعَ
The Messenger of Allah ﷺ used to observe the witr prayer with nine rak'ahs. Then he used to pray seven rak'ahs (of witr prayer). He would pray two rak'ahs sitting after the witr in which he would recite the Qur'an (sitting). When he wished to bow, he stood up and bowed and prostrated. Abu Dawud said: These two traditions have been transmitted by Khalid b. 'Abd Allah al-Wasiti. In his version he said: 'Alqamah b. Waqqas said: O mother, how did he pray the two rak'ahs ? He narrated the rest of the tradition to the same effect.
أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُوتِرُ بِتِسْعِ رَكَعَاتٍ ثُمَّ أَوْتَرَ بِسَبْعِ رَكَعَاتٍ وَرَكَعَ رَكْعَتَيْنِ وَهُوَ جَالِسٌ بَعْدَ الْوِتْرِ يَقْرَأُ فِيهِمَا فَإِذَا أَرَادَ أَنْ يَرْكَعَ قَامَ فَرَكَعَ ثُمَّ سَجَدَ
[Machine] I asked Aisha, and I said, "How did the Messenger of Allah ﷺ perform the two units of prayer while sitting?" She replied, "He would recite in them while sitting, and when he wanted to bow, he would stand up and bow."
سَأَلْتُ عَائِشَةَ قُلْتُ كَيْفَ كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي الرَّكْعَتَيْنِ وَهُوَ جَالِسٌ؟ فَقَالَتْ كَانَ يَقْرَأُ فِيهِمَا وَهُوَ جَالِسٌ فَإِذَا أَرَادَ أَنْ يَرْكَعَ قَامَ فَرَكَعَ