Allah.” (Tafseer Ibn Katheer (can also Allah have mercy on him), remark on Soorat at-Tawbah verse 36)
distinctive feature of fasting in Muharram
Abu Hurayrah (may Allah be thrilled with him) said: The Messenger of Allah (advantages and peace of Allah be upon him) stated: “The satisfactory rapid after Ramadan is within the month of Allah Muharram.” (Narrated via Muslim, 1982)