Sacred month-Dhul-Qa’dah, Dhul-Hijjah, Muharram & Rajab
Qur’an: “Verily, the number of months with Allah is twelve months (in a year), so was it ordained by Allah on the Day when He created the heavens and the earth; of them four are Sacred, (i.e. the 1st, the 7th, the 11th and the 12th months of the Islamic calendar). That is the right religion, so wrong not yourselves therein.” (Qur’an, 9:36)
Hadith: The Prophet (peace be upon him) said: “The year is twelve months, of which four are sacred : the three consecutive months of Dhu’l-Qa’dah, Dhu’l-Hijjah and Muharram, and Rajab Mudar which comes between Jumaada and Sha’baan.” (Al-Bukhari and Muslim).