Sahih Bukhari 4501

Narrated `Aisha: The people used to fast on the day of 'Ashura' before fasting in Ramadan was prescribed but when (the order of compulsory fasting in) Ramadan was revealed, it was up to one to fast on it (i.e. 'Ashura') or not. ..

Narrated `Abdullah: That Al-Ash'ath entered upon him while he was eating. Al-Ash'ath said, Today is 'Ashura. I said (to him), Fasting had been observed (on such a day) before (the order of compulsory fasting in) Ramadan was revealed. But when..

Narrated Aisha: During the Pre-lslamic Period of ignorance the Quraish used to observe fasting on the day of 'Ashura', and the Prophet himself used to observe fasting on it too. But when he came to Medina, he fasted on that day and ordered the..

Narrated 'Ata: That he heard Ibn `Abbas reciting the Divine Verse:-- And for those who can fast they had a choice either fast, or feed a poor for every day.. (2.184) Ibn `Abbas said, This Verse is not abrogated, but it is meant for old men..

Narrated Nafi`: Ibn `Umar recited: They had a choice, either fast or feed a poor for every day.. and added, This Verse is abrogated. ..

Narrated Salama: When the Divine Revelation: For those who can fast, they had a choice either fast, or feed a poor for every day, (2.184) was revealed, it was permissible for one to give a ransom and give up fasting, till the Verse succeeding..