‏الصلاة : Hadeeth No:2071 'A'isha reported Allaah's Prophet (sallAllaahu alayhi wa sallam) saying: If a company of Muslims numbering one hundred pray over a dead person, all of them interceding for him, their intercession for him will be accepted....

‏التوبة : Hadeeth No:6625 Hanzala Taimi Ufayyidi, the scribe of Allaah's Messenger (sallAllaahu alayhi wa sallam), reported: We were in the presence of Allaah's Messenger (sallAllaahu alayhi wa sallam) and he brought to our minds the problems pertaining to Paradise and Hell-Fire. The rest of the hadith is the same....