‏الصلاة : Hadeeth No:1366 Ibn 'Umar reported Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying: The prayer of a person in congregation is twenty-seven times in excess to the prayer said alone....

‏الإيمان : Hadeeth No:373 Anas b Malik reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: Allaah would gather people on the Day of Resurrection and they would be concerned about it, and Ibn Ubaid said. They would get a Divine inspiration about it, and would say: If we could seek intercession with our Lord...