Sacred Month - Rajab & our approach to it

In Muslim, Ibn Majah, and (partly) Ahmad: `Abd Allah, the freed slave of Asma' the daughter of Abu Bakr, the maternal uncle of the son of `Ata', reported:

Asma' sent me to Abdullah ibn `Umar saying: "The news has reached me that you prohibit the use of three things: the striped robe, saddle cloth made of red silk, and fasting the whole month of Rajab." Abdullah said to me: "So far as what you say about fasting in the month of Rajab, how about one who observes continuous fasting? And so far as what you say about the striped garment, I heard `Umar ibn al-Khattab say that he had heard from Allah's Messenger: "He who wears a silk garment, has no share for him (in the Hereafter)." And I am afraid that stripes were part of it. And so far as the red saddle cloth is concerned, here is Abdullah's saddle cloth [=his] and it is red. I went back to Asma' and informed her, so she said: "Here is the cloak (jubba) of Allah's Messenger," and she brought out to me that cloak made of Persian cloth with a hem of (silk) brocade, and its sleeves bordered with (silk) brocade, and said: "This was Allah's Messenger's cloak with `A'isha until she died, then I took possession of it. The Apostle of Allah used to wear that, and we washed it for the sick so that they could seek cure with it."

Nawawi commented on the above:

Ibn `Umar's reply concerning fasting in Rajab is a denial on his part of what Asma' had heard with regard to his forbidding it, and it is an affirmation that he fasted Rajab in its entirety as well as fasting permanently, i.e. except the days of `Id and tashriq. This (perpetual fast) is his way and the way of his father `Umar ibn al-Khattab, `A'isha, Abu Talha, and others of the Salaf as well as Shafi`i and other scholars: their position is that perpetual fasting is not disliked (makruh).

However, being a prologue to the month of Ramadan, it should be availed of for preparing oneself for Ramadan and one should pray Allah to make him reach the blessed month and to benefit from its unique merits.