‏الصلاة : Hadeeth No:777 Abu Huraira reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: He who said his prayer, but did not recite the opening chapter of al-Kitab, his prayer is incomplete. He repeated it thrice....

‏فضائل الصحابة‏ : Hadeeth No:6073 'Abd al-Rahman reported that he heard Hassin b. Thabit al-Ansari call Abu Huraira to bear witness by saying: I adjure you by Allaah if you had not heard Allaah's Prophet (sallAllaahu alayhi wa sallam) saying: Hassin, give a reply on behalf of the Messenger of Allaah. O Allaah, help him with Ruh-ul-Q...