حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا اللَّيْثُ، عَنِ ابْنِ عَجْلاَنَ، عَنْ سَعِيدٍ الْمَقْبُرِيِّ، عَنْ أَبِي هُرَيْرَةَ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم أَنَّهُ قَالَ ‏"‏ مَنْ قَعَدَ مَقْعَدًا لَمْ يَذْكُرِ اللَّهَ فِيهِ كَانَتْ عَلَيْهِ مِنَ اللَّهِ تِرَةً وَمَنِ اضْطَجَعَ مَضْجَعًا لاَ يَذْكُرُ اللَّهَ فِيهِ كَانَتْ عَلَيْهِ مِنَ اللَّهِ تِرَةً ‏"‏ ‏.‏

Narrated AbuHurayrah: The Prophet (PBUH) said: If anyone sits at a place where he does not remember Allah, deprivation will descend on him from Allah; and if he lies at a place where he does not remember Allah, deprivation will descend on him from Allah. Translation Not Available

Book Ref: Sunan Abi Dawud Book 43 Hadith 4856
Web Ref:  Sunan Abi Dawud Book 42 Hadith 4838