Musnad Ahmad 678
It was narrated that ‘Ali (رضي الله عنه) said:
The Messenger of Allah (ﷺ) used to pray Witr reciting nine surahs from Al-Mufassal. Aswad said: In the first rak’ah he would recite `The mutual rivalry (for piling up of worldly things) diverts you` [At-Takathur 102] and “verily, We have sent it (this Qur`an) down in the Night of Al-Qadr (Decree)` [al-Qadr 97], and `When the earth is shaken with its (final) earthquake` [az-Zalzalah 99]. In the second rak`ah he would recite `By Al-‘Asr (the time)” [Al-ʻAsr 103] and `When there comes the Help of Allah (to you, O Muhammad  against your enemies) and the Conquest (of Makkah)` [An-Nasr 95] and “Verily. We have granted you (O Muhammad (ﷺ)) Al-Kawthar (a river in Paradise)` [Al-Kawthar 108]. In the third rak`ah he would recite “Say (O Muhammad to these Mushrikoon and Kafiroon): `O Al-Kafiroon (disbelievers in Allah, in His Oneness, in His Angels, in His Books, in His Messengers, in the Day of Resurrection, and in Al Qadar)!” [Al-Kafiroon 109] and “Perish the two hands of Abu Lahab (an uncle of the Prophet (ﷺ)) and perish he!` [Al-Masad 109] and `Say (O Muhammad (ﷺ)): “He is Allah, (the) One“ [Al-Ikhlas 112].
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ الزُّبَيْرِ، وَأَسْوَدُ بْنُ عَامِرٍ، قَالَا حَدَّثَنَا إِسْرَائِيلُ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْحَارِثِ، عَنْ عَلِيٍّ، رَضِيَ اللَّهُ عَنْهُ قَالَ كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُوتِرُ بِتِسْعِ سُوَرٍ مِنْ الْمُفَصَّلِ قَالَ أَسْوَدُ يَقْرَأُ فِي الرَّكْعَةِ الْأُولَى ‏{‏أَلْهَاكُمْ التَّكَاثُرُ‏}‏ وَ ‏{‏إِنَّا أَنْزَلْنَاهُ فِي لَيْلَةِ الْقَدْرِ‏}‏ وَ ‏{‏إِذَا زُلْزِلَتْ الْأَرْضُ‏}‏ وَفِي الرَّكْعَةِ الثَّانِيَةِ ‏{‏وَالْعَصْرِ‏}‏ وَ ‏{‏إِذَا جَاءَ نَصْرُ اللَّهِ وَالْفَتْحُ‏}‏ وَ ‏{‏إِنَّا أَعْطَيْنَاكَ الْكَوْثَرَ‏}‏ وَفِي الرَّكْعَةِ الثَّالِثَةِ ‏{‏قُلْ يَا أَيُّهَا الْكَافِرُونَ‏}‏ وَ ‏{‏تَبَّتْ يَدَا أَبِي لَهَبٍ‏}‏ وَ ‏{‏قُلْ هُوَ اللَّهُ أَحَدٌ‏}‏‏.‏