The virtues of fasting in the haram are also told in the authentic hadith of Muslim priests. Even fasting in these glorious months is called the Messenger of Allah as the fastest after the fast of Ramadan. The Prophet said: "The main thing about fasting after the fast of Ramadan in al-muharram month (Dhu al-Qa'dah, Dhul-Hijjah, Muharram, and Rajab).