It was narrated that Abu Qatadah said: “They told the Prophet صلی اللہ علیہ وآلہ وسلم that they had slept and missed the prayer. He said: ‘There is no negligence when one sleeps, rather negligence is when one is awake. If any one of you forgets a prayer or sleeps and misses it, let him pray it when he remembers it.” (Sahih)