Prayer (Kitab Al-Salat): Detailed Injunctions about Witr
Dawud :: Book 8 : Hadith 1476
Narrated Fudalah ibn Ubayd,:
The Apostle of Allah (peace_be_upon_him) heard a person supplicating during prayer. He did not mention the greatness of Allah, nor did he invoke blessings on the Prophet (peace_be_upon_him).
The Apostle of Allah (peace_be_upon_him) said: He made haste.
He then called him and said either to him or to any other person: If any of you prays, he should mention the exaltation of his Lord in the beginning and praise Him; he should then invoke blessings on the Prophet (peace_be_upon_him); thereafter he should supplicate Allah for anything he wishes.