General Behavior (Kitab Al-Adab)
Dawud :: Book 41 : Hadith 5024
Narrated Mu'adh ibn Jabal:
The Prophet (peace_be_upon_him) said: If a Muslim sleeps while remembering Allah, in the state of purification, is alarmed while asleep at night, and asks Allah for good in this world and in the Hereafter. He surely gives it to him. Thabit al-Bunani said: AbuZabyah came to visit us and he transmitted this tradition to us from Mu'adh ibn Jabal from the Prophet (peace_be_upon_him). Thabit said: So and so said: I tried my best to utter these (prayers) when I got up, but I could not do.