‏البيوع : Hadeeth No:3659 Abdullah b. 'Umar (Allaah be pleased with them) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: When two persons enter into a transac. tion, each one of them has the right to annul it so long as they are not separated, or their transaction gives one another (as a condition) the...

‏الذكر والدعاء والتوبة والاستغفار‏ : Hadeeth No:6505 Abu Huraira reported Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying Allaah has mobile (squads) of angels, who have no other work (to attend to but) to follow the assemblies of Dhikr and when they find such assemblies in which there is Dhikr (of Allaah) they sit in them and some of them su...