Sunan Ibn Majah 698
The Book of the Prayer
Whoever Sleeps Through Prayer Or Forgets it
'Abdullah bin Rabah narrated that Abu Qatadah said: "They mentioned negligence because of sleeping too much, and he said: 'They slept until the sun had risen. The Messenger of Allah said: "There is no negligence when oneis sleeping, rather there is negligence when one is awake. If anyone of you forgets to pray, or sleeps and misses a prayer, then let him pray when he remembers, and during its time if it is a day after. (Sahih)'Abdullah bin Rabah said: "Imran bin Husain heard me when I was narrating this Hadith and said: 'O young man, look at how you are narrating the Hadith. I was present at the time of this Hadith with the Messenger of Allah.' And he did not deny anything of the Hadith."