‏الصلاة : Hadeeth No:1435 Anas b. Malik reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) observed Qunut for a month in the dawn prayer after ruku' and invoked curse upon Ri'l, Dhakwan, and said that 'Usayya had disobeyed Allaah and His Prophet (sallAllaahu alayhi wa sallam)....

‏البر والصلة والآداب‏ : Hadeeth No:6344 Abu Barza reported that he said to Allaah's Messenger (sallAllaahu alayhi wa sallam): Allaah's Messenger, I do not know whether I would survive after you, so confer upon me something by which Allaah should benefit me. Thereupon Allaah's Messenger (sallAllaahu alayhi wa sallam) said: Do this and that...