Fasting on the 9th n 10th of Muharram
Via Dua's - Fortress Of The Muslims
Abu Qatada رضي الله ﺗﻌﺎﻟﯽٰعنه relates that the Prophet صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ said:
The fast on the 10th of Muharram atones for the sins of the preceding year.
'Abd-Allaah ibn ‘Abbaas رضي الله ﺗﻌﺎﻟﯽٰعنه said: When the Messenger of Allah صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ fasted on the day of ‘Ashoora (10th of Muharram) and told the people to fast, they said,
“O Messenger of Allah صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ, this is a day that is venerated by the Jews and Christians.”
Prophet صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ said,
“Next year, if ALLAH (سبحانه وتعالى) wills, we will fast on the ninth day.” But by the time the following year came, the Messenger of Allah صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ had passed away.
(Narrated by Muslim, 1916)
Shaikh al-Islam Ibn Taymiyah said: The Prophet صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ forbade resembling the People of the Book in many ahadith.
For example, he said concerning ‘Ashoora’ (10th of Muharram):
“If I live until next year I will certainly fast the ninth.”
(Al-Fataawa al-Kubra, part 6)
Ibn Hajar Rahmatullah said,
commenting on the hadith
“If I live until next year I will certainly fast the ninth”:
His concern to fast the ninth may be understood as meaning that he would not limit himself to that, rather that he would add it to the tenth, either to be on the safe side, or to be different from the Jews and Christians, which is more likely to be correct; this is what may be understood from some of the reports narrated by Muslim.”
[From Fath al-Baari, 4/245]
Prophet Muhammad (Peace be upon him) said: "The noblest charity is that a Muslim acquires some knowledge (of the Deen) then imparts it to a brother Muslim." (Ibn Majah).