Question 8: I am a twenty-seven-year-old Saudi man. I went to prison and I began to worship Allaah. I observe Sawm (fasting) on Monday and Thursday of every week, on three days of every month, the whole month of Rajab; nine days of Dul-Hijjah; the ninth, tenth and eleventh of Muharram (i.e. the day of ‘Ashoora’, a day before and a day after); six days of Shawwaal, and the middle of Sha‘baan. It is claimed that Sawm should be observed in Ramadaan only, and the rest is a Bid‘ah (innovation in religion), and there is no Saheeh (authentic) Hadeeth that proves them. But I found a Saheeh Hadeeth which states this in the book entitled “Tanbih Al-Ghafilin” by Shaykh ‘Aboo Al-Layth Al-Samarqandee. Please advise whether Sawm on these days is really a Bid‘ah, given that my colleagues in prison say so.
Answer: Sawm on Mondays and Thursdays, three days of every month (13th, 14th, and 15th of every Hijri month), the ninth of Dul-Hijjah, the tenth of Muharram, in addition to a day before or after it… read more here.