Dou you know that now is Rajab. And do you know that Rajab is a sacred month.
The Sacred Months are mentioned by implication in the Qur’aan (al-Tawbah 9:36), but their names are not given. Their names are mentioned in the Sunnah:
It was reported from Abu Bakrah (may Allaah be pleased with him) that the Prophet SAWS (peace and blessings of Allaah be upon him) gave his Farewell Sermon and said: “Time has completed its cycle and is as it was on the Day when Allaah created the heavens and the earth. The year is twelve months, of which four are sacred, three consecutive months – Dhoo’l-Qa’dah, Dhoo’l-Hijjah and Muharram – and the Rajab of Mudar which comes between Jumaada and Sha’baan.” (Reported by al-Bukhaari, no. 1741, in [Kitaab] al-Hajj, al-Khutbah Ayaam Mina; and by Muslim, no. 1679, in [Kitaab] al-Qisaamah, Baab Tahreem al-Dimaa’).
The Sacred months have a special status, which applies also to Rajab because it is one of these sacred months. Allaah says (interpretation of the meaning):
“O you who believe! Violate not the sanctity of the Symbols of Allaah, nor of the Sacred Month…” [al-Maa’idah 5:2]
This means: do not violate their sanctity which Allaah has commanded you to respect and forbidden you to violate, for this prohibition includes both vile deeds and vile beliefs.
Allaah says (interpretation of the meaning):
“so wrong not yourselves therein…” [al-Tawbah 9:36] meaning, in the Sacred Months. The pronoun here [translated here as “therein”] refers to these four sacred months, as stated by the Imaam of the Mufassireen, Ibn Jareer al-Tabari (may Allaah have mercy on him).
So we should pay attention to the sanctity of these four months, because Allaah has singled them out for a special status and has forbidden us to commit sins out of respect for their sanctity, for sins committed at this time are even worse, because of the sanctity of the time which Allaah has made sacred. Hence in the aayah quoted above, Allaah has forbidden us to wrong ourselves even though this – i.e., wronging ourselves, which includes committing sins – is forbidden during all the months of the year
*Penjelasan dalam Bahasa Indonesia tentang bulan Rajab bisa di baca di lnki berikut https://elsunnah.wordpress.com/2013/05/12/kedudukan-bulan-rajab-dan-bulan-bulan-haram-lainnya/