‏الصلاة : Hadeeth No:1703 Ibn 'Umar reported Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying: Observe some of your prayers in your houses and do not make them graves....

‏البيوع : Hadeeth No:3611 A hadith like this has been narrated on the authority of Abu Huraira (Allaah be pleased with him) through another chain of transmitters....