It was narrated that Abu Al-Jawza said:
"Al-Hasan said: "The Messenger of Allah (ﷺ) taught me some words to say in witr in Qunut: Allahumma ihdini fiman hadayta wa 'afini fiman afayta wa tawallani fiman tawallayta wa barik li fima a'tayta, wa qini sharra ma qadayta, fa innaka taqdi wa la yuqda 'alayk, wa innahu la yadhilluman walayta, tabarakta Rabbana wa at'alayt (O Allah, guide me among those whom You have guided, pardon me among those You have pardoned, turn to me in friendship among those on whom You have turned in friendship, and bless me in what You have bestowed, and save me from the evil of what You have decreed. For verily You decree and none can influence You; and he is not humiliated whom You have befriended. Blessed are You, O Lord, and Exalted.)'"

It was narrated that Al-Hasan bin Ali said:
"The Messenger of Allah (ﷺ) taught me these words in witr. He said: Say: Allahumma ihdini fiman hadayta wa 'afini fiman afayta wa tawallani fiman tawallayta wa barik li fima a'tayta, wa qini sharra ma qadayta, fa innaka taqdi wa la yuqda 'alayk, wa innahu la yadhilluman walayta, tabarakta Rabbana wa at'alayt. Wa salla Allahu ala al-Nabi Muhammad (O Allah, guide me among those whom You have guided, pardon me among those You have pardoned, turn to me in friendship among those on whom You have turned in friendship, and bless me in what You have bestowed, and save me from the evil of what You have decreed. For verily You decree and none can influence You; and he is not humiliated whom You have befriended. Blessed are You, O Lord, and Exalted. And may Allah (SWT) send salah upon the Prophet Muhammad)'"

It was narrated from Ali bin Abi Talib that:
The Prophet (ﷺ) used to say at the end of witr: Allahumma inni audhu bi ridaka min sakhatika wa bi mu'afatika min uqubatika, wa audhu bika minka la uhsi thana'an 'alayka, anta kama athwart ala nafsik ( O Allah, I seek refuge in Your pleasure from Your wrath and in Your forgiveness from Your punishment. And I seek refuge in You from You; I cannot praise You enough; You are as You have praised Yourself.)."