الصيام : Hadeeth No:2516
A hadith like this has been narrated on the authority of Ibn Shihab through the same chain of transmitters....
الصلاة : Hadeeth No:1442
Anas reported that the Messenger of Allaah (sallAllaahu alayhi wa sallam) observed Qunut for one month invoking curse upon some tribes of Arabia (those who were responsible for the murders in Bi'r Ma'una and Raji'), but then abandoned it....