‏الصلاة : Hadeeth No:1704 Ibn 'Umar reported Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying: Pray in your houses, and do not make them graves....

‏البيوع : Hadeeth No:3736 Nafi reported that Ibn Umar (Allaah be pleased with them) rented his land during the lifetime of Allaah's Messenger (sallAllaahu alayhi wa sallam) and during the caliphate of Abu Bakr and that of Umar and that of Uthman (Allaah be pleased with them) and during the early period of Muawiya's caliphate...