The Messenger of Allah ﷺ taught me some words that I say during the witr. (The version of Ibn Jawwas has: I say them in the supplication of the witr.) They were: "O Allah, guide me among those Thou hast guided, grant me security among those Thou hast granted security, take me into Thy charge among those Thou hast taken into Thy charge, bless me in what Thou hast given, guard me from the evil of what Thou hast decreed, for Thou dost decree, and nothing is decreed for Thee. He whom Thou befriendest is not humbled. Blessed and Exalted art Thou, our Lord."  

الْحَسَنُ بْنُ عَلِيٍّ ؓ عَلَّمَنِي رَسُولُ اللَّهِ ﷺ كَلِمَاتٍ أَقُولُهُنَّ فِي الْوِتْرِ قَالَ ابْنُ جَوَّاسٍ فِي قُنُوتِ الْوِتْرِ اللَّهُمَّ اهْدِنِي فِيمَنْ هَدَيْتَ وَعَافِنِي فِيمَنْ عَافَيْتَ وَتَوَلَّنِي فِيمَنْ تَوَلَّيْتَ وَبَارِكْ لِي فِيمَا أَعْطَيْتَ وَقِنِي شَرَّ مَا قَضَيْتَ إِنَّكَ تَقْضِي وَلاَ يُقْضَى عَلَيْكَ وَإِنَّهُ لاَ يَذِلُّ مَنْ وَالَيْتَ وَلاَ يَعِزُّ مَنْ عَادَيْتَ تَبَارَكْتَ رَبَّنَا وَتَعَالَيْتَ  

The version has the words: "He would recite the supplication of the witr." He did not mention the words: "I say them in the witr." Abu Dawud said: The name of Abu al-Hawra' is Rabi'ah b. Shaiban.  

هَذَا يَقُولُ فِي الْوِتْرِ فِي الْقُنُوتِ وَلَمْ يَذْكُرْ أَقُولُهُنَّ فِي الْوِتْرِ  

The Messenger of Allah ﷺ used to say at the end of his witr: "O Allah, I seek refuge in Thy good pleasure from Thy anger, and in Thy forgiveness from Thy punishment, and I seek refuge in Thy mercy from Thy wrath. I cannot reckon the praise due to Thee. Thou art as Thou hast praised Thyself."  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَقُولُ فِي آخِرِ وِتْرِهِ اللَّهُمَّ إِنِّي أَعُوذُ بِرِضَاكَ مِنْ سَخَطِكَ وَبِمُعَافَاتِكَ مِنْ عُقُوبَتِكَ وَأَعُوذُ بِكَ مِنْكَ لاَ أُحْصِي ثَنَاءً عَلَيْكَ أَنْتَ كَمَا أَثْنَيْتَ عَلَى نَفْسِكَ  

Muhammad reported on the authority of some of his teachers that Ubayy b. Ka'b led them in prayer during Ramadan. He used to perform the qunut during the second half of Ramadan.  

أَنَّ أُبَىَّ بْنَ كَعْبٍ أَمَّهُمْ يَعْنِي فِي رَمَضَانَ وَكَانَ يَقْنُتُ فِي النِّصْفِ الآخِرِ مِنْ رَمَضَانَ  

Al-Hasan reported: Umar ibn al-Khattab gathered the people (in tarawih prayer) behind Ubayy ibn Ka'b (who led them). He used to lead them for twenty days (during Ramadan, and would not recite the supplication except in the second half of it (i.e. Ramadan). When the last ten days remained, he kept away from them, and prayed in his house. They used to say: Ubayy ran away. Abu Dawud said: This tradition shows that whatever has been reported about the recitation of the supplication is not tenable. Moreover, these two traditions from Ubayy b. Ka'b indicate that another tradition which tells that the Prophet ﷺ recited the supplication in the witr is weak.  

أَنَّ عُمَرَ بْنَ الْخَطَّابِ جَمَعَ النَّاسَ عَلَى أُبَىِّ بْنِ كَعْبٍ فَكَانَ يُصَلِّي لَهُمْ عِشْرِينَ لَيْلَةً وَلاَ يَقْنُتُ بِهِمْ إِلاَّ فِي النِّصْفِ الْبَاقِي فَإِذَا كَانَتِ الْعَشْرُ الأَوَاخِرُ تَخَلَّفَ فَصَلَّى فِي بَيْتِهِ فَكَانُوا يَقُولُونَ أَبَقَ أُبَىٌّ قَالَ أَبُو دَاوُدَ وَهَذَا يَدُلُّ عَلَى أَنَّ الَّذِي ذُكِرَ فِي الْقُنُوتِ لَيْسَ بِشَىْءٍ وَهَذَانِ الْحَدِيثَانِ يَدُلاَّنِ عَلَى ضَعْفِ حَدِيثِ أُبَىٍّ أَنَّ النَّبِيَّ ﷺ قَنَتَ فِي الْوِتْرِ