Authentic Supplication Number 053.

It is reported by way of 'Abi 'Al-Hawra' that he heard Al-Hasan son of 'Ali  saying: The Messenger of Allah taught me to say in the Witr [prayer] 'Allahumma 'ihdinee feeman hadayta wa tawallanee feeman tawallayta wa `afinee feeman `afayta wa bariklee feema 'a`tayta wa qinee sharra ma qadhayta, 'innaka taqdhee wala yuqdha `alayka, 'innahu la yathillu man waleyta wala ya`izzu man `adayta tabarakta (76) wa ta`alayta (77).

Footnotes.
(76) The word "Rabbana" occurs in this place in some of reports. In some reports of this hadeeth this supplication is not restricted to the Witr prayer and in other it is.

(77) O' my 'ilah guide me among those that You have guided, befriend me among those that You have befriended, pardon me among those that You have pardoned, put blessing for me in that which You have given, and prevent me the evil of that which You have decreed, [verily] You decree and are not decreed upon, one that You befriend is not abased, and one that You make enemy, will not be honored, blessed are Thee and Exalted.

Reporters.
'Al-`Adawee said it was sound, and that it was reported by At-Tabarani, #2707; Al-Hakim; Ahmad; Al-Bayhaqi; Ibn Majah, #1178; An-Nisa'ee; At-tirmithi who said it was comely, Ibn Jarood, #272; and Abu Dawood, #1425.