Rajab is the seventh month of the Islamic calendar. When the moon of Rajab was sighted Rasulullah (Sallallaahu layhi Wasallam) used to read the following Dua'a:
Allaahumma baarik lanaa fii rajab wa sha'baan wa balligh-naa ramadhaan
Oh Allah! grant us blessings in the month of Rajab and Shabaan, and take us forth to the month of Ramadhaan
This Dua'a should be recited regularly in the month of Rajab and Shabaan. Rajab indicates the nearness of the Mubarak month of Ramadhaan. Hence, Rasulullah (Sallallaahu layhi Wasallam) would express his eagerness to be blessed with the month of Ramadhaan from Rajab.
In order to enter Ramadhaan in the best possible manner, one has to prepare himself in the months of Rajab and Shabaan.
Shabaan is the month in which we should water those seeds (with tears of sorrow) and
Ramadhaan is the month in which we reap the harvest.
Please do remember my family & I in your duas as I will do the same,
Fi amaanillah (I leave you in the protection of Allah Subhana wa Ta’ala)