Abu Dawud Book 2, Hadith Number 1421.

Chapter : Supplications during the witr.

Narated By N/A : The aforesaid tradition has been transmitted by Abu Ishaq with the same chain and to the same effect. In the last of this tradition he said: The version has the words: “He would recite in the supplication of the witr.” He did not mention the words: “I say them in the witr.”