Musannaf Ibn Abi Shayba 21:585

Sharik narrated to us, from Abdullah, from Abu Ishaq, from Burayd ibn Abi Maryam, from Abu al-Hawra’, from al-Hasan ibn Ali, who said: My grandfather taught me words to say in the Qunut of the Witr: "O Allah, guide me among those whom You have guided, and pardon me among those whom You have pardoned, and take me as a charge among those whom You have taken as a charge, and protect me from the evil of what You have decreed. And bless for me what You have given, for indeed You decree and none can decree against You. Indeed, he whom You take as a charge is not humiliated. Exalted are You, our Lord, Blessed and Exalted."