‏الصيام : Hadeeth No:2511 This hadith has been narrated from Jarir on the authority of A'mash with the same chain of transmitters and he said (these words with a little bit of variation from the previous hadith): When (fasting) in Ramadan was (made) obligatory, he aban- doned it (the practice of observing fast on Ashura)....

‏الصلاة : Hadeeth No:741 Ibn Umar reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) had two Mu'adhdhins, Bilal and 'Abdullah b. Umm Maktum, who (latter) was blind....