Musnad Ahmad 16:1

Waki’ narrated to us, Yunus bin Abi Ishaq narrated to us, from Burayd bin Abi Maryam as-Saluli, from Abu al-Hawra’, from al-Hasan bin ‘Ali, who said: The Messenger of Allah (peace and blessings of Allah be upon him) taught me words to say during the Qunut of Witr: "O Allah, guide me among those whom You have guided, and pardon me among those whom You have pardoned, and befriend me among those whom You have befriended, and bless me in what You have given, and protect me from the evil of what You have decreed. For indeed, You decree and none can decree against You. Indeed, he whom You befriend is not humiliated. Blessed are You, our Lord, and Exalted."